fifteen darts have landed on the dart board shown. each dart scores 3,5, or 7 points. in how many different ways can the fifteen darts score a total of 75 points
Answers
Answer:
The answer is "8".
Step-by-step explanation:
Let the number are a, b, c then value is as follows:
a= 3
b= 5
c= 7
The addition of equation ⇒ a+b+c =15....................(i)
multiply by the value ⇒ 3a + 5b + 7c = 75 ...............(ii)
let b= 15-a-c which subtract from equation (ii)
equation:
⇒ 3a + 5b + 7c = 75
⇒ 3a + 5(15-a-c) + 7c = 75
⇒ 3a +75-5a-5c+7c = 75
⇒ 3a -5a-5c+7c = 75-75
⇒ -2a + 2c = 0
⇒ 2(c-a) = 0
⇒ (c-a) = 0
⇒ c=a
if we put value in between 0 to 7 from it satisfies the two equations, with c=a and b = 15 - a - c. So, the correct answer is 8.
Related Questions
How do I bypass blocksi on my school Chromebook, i know it's not a math question but I still please answer
Answers
Factorise mx+cx+my+cy
With steps!!!
x=algebra x
Answers
Step-by-step explanation:
Hey there!
While factorising you remember to make it take common in most of the expression.
Here;
=mx+cx+my+cy
Take common 'x' in "mx+cx" and 'y' in my + cy.
= x(m+c) + y(m+c)
Now, "(m+c)" common again.
= (m+c) (x+y)
Therefore the factorized form of the expression in (m+c)(x+y).
Hope it helps...
Sample Answer: Make a table with inputs showing the number of bottles of water and outputs showing the total cost of the water. Use 1, 2, 3, and 4 bottles for the inputs. Find the corresponding outputs. Plot the ordered pairs in the table of the form (input,output).
Which instructions did you include in your explanation? Check all that apply.
Identify the input.
Identify the output.
Create a table for four input values.
Plot the points from the table.
Answers
The instructions that you would include in your explanation are:
Identify the output.
Create a table for four input values.
Plot the points from the table.
The instructions to be includedIn the given question, a series of instructions are provided. To properly explain your process, you have to explain how you got the output. There is no need of explaining the input as they are already provided.
Next, you will Show how you created the table and why you created it in that way. Finally, indicate how the points were plotted on the table. An explanation such as this will help anyone to follow through.
Learn more about ordered pairs here:
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Answer:1 to 2
2 to 4
Step-by-step explanation:
I need help ASAP . I'll give brainliest :3...
Answers
Question 3:
Since it does not start proportional, I would assume there was 1.6 meters already in the pond.
I would say the rate of change is 0.4 Meters per hour.
I believe this because in the last 2 hours it went from 2 meters to 2.8 meters. This makes me believe there was 1.6 meters already because if you count the first hour you can do 2-0.4=1.6
In conclusion the rate of change is 0.4 Meters per hour.
For question 4:
The rate of change is $7.75 per hour or $7.75/hour
Step-by-step explanation:
I got this answer by finding how much Sarah makes per hour.
15.50=2 therefore if you divide both sides by 2 you get 7.75=1
7.75=1 means Sarah makes 7.75 per hour.
Then, to check my answer I multiplied the unit rate of 7.75=1 by 4
This gave me 31.00=4 or Sarah makes 31.00 for every 4 hours.
In conclusion, the rate of change is $7.75 per hour
Q1: 2 meters per 1 hour or 2 meters/hour
Q2: $7.75 per 1 hour or $7.75/hour
EXPLANATION:
Q1 for every 1 hour it rains Jake’s pool fills up 2 meters.
Q2: 15.50/2 = x/1
15.50 divided by 2/ 2 divided by 2 = 7.75/1
For every 1 hour Sarah makes $7.75.
The length of a building is 60 feet. The length of the building on a scale drawing is 4 inches. Which ratio describes the scale of the drawing?
-- giving brainliest to whoever has the answer (with descriptions and such)
-- if no one else answers (but only one person), i'll be able to give five stars and a thanks
Answers
the ratio of the scale drawing is
1 inch on the drawing represents 180 feet in real life.
To determine the ratio of the scale drawing, we need to first find the length of the building on the scale drawing. We know that the actual length of the building is 60 feet, and the length of the building on the scale drawing is 4 inches. We can set up a proportion to find the length of the building on the scale drawing:
Actual length / Length on scale drawing = Scale factor
We can plug in the values we know:
60 feet / Length on scale drawing in inches = Scale factor
To solve for the length on the scale drawing in inches, we can cross-multiply:
60 feet * 1 inch / Scale factor = Length on scale drawing in inches
Simplifying:
Length on scale drawing in inches = 60 feet * 12 inches / Scale factor
We know that the length on the scale drawing is 4 inches, so we can plug that into the equation:
4 inches = 60 feet * 12 inches / Scale factor
Solving for the scale factor:
Scale factor = 60 feet * 12 inches / 4 inches
Scale factor = 180
need help asap
The total measure of two adjacent angles is 168°. If one of the adjacent angles measures 107.6°, determine the measure of the other adjacent angle.
156.72°
66.72°
46.56°
23.28°
Answers
Answer: 156.72 °
Step-by-step explanation:
am I a loser, if so don't hold back just say it
Answers
Answer:
Loser
Step-by-step explanation:
Answer:
I don't know.
Step-by-step explanation:
I've never met you, so how would I know?
But the real question is. . .
Do you like ice cream?
The measures of the legs of a right triangle both measure 7 yards. What is the length of the hypotenuse? Round your answer to the nearest tenth.
A. 7 yards
B. 9.8 yards
C. 9.9 yards
D. 10 yards
Answers
Answer: 9.9 yards
Step-by-step explanation: Since we know that the legs of the right triangle both measure 7 yards, we can use the Pythagorean theorem to find the length of the hypotenuse, which is the longest side of the right triangle.
According to the Pythagorean theorem, the square of the hypotenuse equals the sum of the squares of the legs. In this case, we have:
c^2 = 7^2 + 7^2 c^2 = 49 + 49 c^2 = 98
To find the length of the hypotenuse, we need to take the square root of both sides of the equation:
c = √98
Using a calculator, we can find that √98 is approximately 9.9. Therefore, the length of the hypotenuse is approximately 9.9 yards.
The answer is C. 9.9 yards.
2 8/9 - 2/3 = 1 1/3. Correct any mistakes
Answers
Answer:
its 20/9
Step-by-step explanation:
2×9+8 /9=18+26/9
26/9-2/3=20/9
Answer:
2 2/9
Step-by-step explanation:
2/3= 6/9
2 8/9 = 26/9
26/9 - 6/9 = 20/9
20/9 simplified = 2 2/9
Giovanni buys a sweater at a store. The normal price is $30 but the sweater is on sale for 25% off.
a) How much in dollars will Giovanni save from the sale?
b) What is the sale price of the sweater?
c) The next week, Giovanni goes back to the same store and sees the same sweater. Now it’s on sale for $18. What is the percent decrease from the original $30 price to the new $18 price?
Answers
Answer:
Step-by-step explanation:
a. 7.50
b. 22.50
c. 40%
B.) $22.5
C.) 60% decrease
I NEED HELP ASAP with a science experiment give me ideas what experiments (mini-labs) I could do based on the task! READ THE SCREENSHOT
Answers
Answer: You should do a representation of how the heat and light waves reach humans on earth and keep us warm.
Step-by-step explanation:
all your answers are already in the task introduction.
1. Make earth out of styrofoam ball (buy at a dollar store) and paint. (blue and green). (If you want to make humans out of popsicle sticks)
2. Use velvet pipe cleaners (blue for cold air and red for hot air) to represent convection and conduction.
3. Use yellow pipe cleaners for solar energy to represent radiation.
4. Rest is up to you for how you want it to look.
Help please again. thank chu
Answers
Answer:
s = -5
Step-by-step explanation:
solve for s
-50 = 10s
divide both sides by 10
-50 / 10 = -5
10s/10 = s
we're left with s = -5
Answer:
solution: s = -5
Step-by-step explanation:
Divide both sides of the equation by the same term
Please Answer!! Im begging!
Answers
Answer:
$23 per hour
Step-by-step explanation:
simple divide 920 by 40 (you can use a calucaltor)
A small submarine starts at –1,260 feet in relation to sea level. Then it descends 5 feet per minute for 12 minutes.
What integer represents the rate of motion of the submarine?
Answers
Answer:
-5/12 ft/min (answer)
Step-by-step explination
The initial depth has no bearing on the answer to this question. Focus on
"descends 5 ft per min for 12 min." That's the rate.
You could find the unit descend rate by reduing that rate:
Banana Cupcakes
makes 10 cupcakes
1 cup granulated sugar
cup vegetable oil
1 large egg
4 tablespoons sour cream
2 medium-sized ripe bananas, mashed
1 cups all-purpose flour
1 teaspoon baking soda
teaspoon salt
1 teaspoon vanilla extract
pinch of nutmeg
You will use the recipe above to answer the following questions:
This recipe serves 10, but you need to serve 30. What number will you need to multiply the amount of each ingredient by to adjust the recipe? How did you determine this number?
How much vegetable oil do you need for 30 cupcakes?
How much flour do you need for 30 cupcakes?
What is the difference in the amount of vanilla extract you would need for 30 cupcakes?
What is the difference in the amount of salt you would need for 30 cupcakes?
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?
Answers
Answer: Hey give me 1 hour and ill answer it I'm doing odessyware rn so Ill get back to you later appreciate yo patients.
Step-by-step explanation:
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x*10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3*4 = 12 tablespoons.
We could round this down to 10 tablespoons.
Hope this helped
I almost broke my brain doing this so can you give me brainliest answer please thank you
Frank finds 9 coins on the floor of his car, and 3 of them are quarters. If he finds 15 more coins on the ground, at the same ratio as the coins found in the car, how many more coins will most likely be quarters?
Answers
3 is 1/3 of 9, meaning the probability of picking up a quarter is 1/3, if he finds 15 more,
15/3 is 5.
5 coins should be quarters
Answer: 5 coins
Step-by-step explanation:
Frank found 9 coins on the floor of his car, and 3 of them were quarters. This means that 3 out of the 9 coins, or \(\frac{3}{9}\), were quarters.
Simplifying this fraction, we get \(\frac{1}{3}\) of the coins found in the car were quarters.
If Frank finds 15 more coins on the ground at the same ratio, then \(\bold{\frac{1}{3}}\) of these coins will also be quarters. To find out how many quarters he will most likely find, we need to find \(\bold{\frac{1}{3}}\) of 15:
\(\large \frac{1}{3} \times 15 = 5\)
Therefore, Frank will most likely find 5 more quarters on the ground, assuming he finds coins at the same ratio as he did in his car.
_______________________________________________________
Pls help
Solve for x in the diagram below.
Answers
Step-by-step explanation:
(2x + 45)° and x° are supplmentary angles.
(Sum of angles on a straight line = 180°)
Hence 2x + 45 + x = 180, 3x = 135, x = 45.
Predict the cost of a meal for a family of four between $50.00 and $100.00. Be sure to include dollars and cents.
Part A: If the family has a 15%-off coupon, calculate the new price of the meal. Show all work or explain your steps. (2 points)
Part B: Calculate a 20% tip using the new price. What is the final cost of the meal? Show all work or explain your steps. (2 points)
Answers
Answer:
$51
Step-by-step explanation:
lets say 50, so 15% of 50 is 42.5 and + 20% for tip which is $51
Graph the following in cartesian plane. With solution.
1.) 5x - 4y = 20
2.) 3x + 3y = 15
3.) y = 3/4x - 2
4.) y = -3/2x + 3
Answers
2. 5
3. 3/8
4. -1/2
I need help with these questions from 11 to 20. I already did questions 1 through 10 with my math teacher but I'm not in school so please please please answer all of these answers it would mean a lot to me and would help me a lot with the math homework I need to get done, so yeah. Please help.
Answers
11 is 6 and 3
12 is coefficient
13 is variable
14 is 82b and 3u^2 and 7 and 41h and 54
15 is 9r and 2g
16 is exponent
17 is constant
18 is 21 and 8 and 3
19 is r and g and n
20 is a term
The number and element
Need answer asap please and thank you.
Answers
Answer:
-9 if that is to the power of 3 at the end
Step-by-step explanation:
Simplify the root.
What number multiplied by itself 3 times gives you 27?
3
18 - (3)^3 =
18 - 27 = -9
Also, a quicker way to do it when you get more confident is if you have a root (for example third root) and you raise it to the same exponent as is the root. (third root to third power) the root goes away and you are just left with the guts of that root.
Hope this helps :)
If you need any more explanation, feel free to ask. If this really helps, consider marking brainliest.
- Jeron
Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"
Answers
Answer:
no bro, sorry. even though I needed to I don't have it
The circumference of a woman’s basketball must be between 28.5 in. and 29 in., inclusive. What is a compound inequality that could show this?
Answers
Answer:
The ball should be BOTH greater than 28.5 AND less than 29 (although I don't think it's in inches...) Since it is not explicitly stated, let's assume we're talking about the basketballs diameter, D.
So now this may be written D > 28.5 and D < 29. Combining these two, we can write 28.5 < D < 29.
Also not explicitly stated is whether or not the basketball may be equal to 28.5 or 29. If, indeed, that is the case, then instead we may write this as D >= 28.5 and D <= 29, or combining, 28.5 <= D <= 29.
Hope this helps :D.
The compound inequality is 28.5 <= D <= 29.
It is required to find the compound inequality.
What is compound inequality?A compound inequality is two or more inequalities joined together with or or and . To be a solution of an or inequality, a value has to make only one part of the inequality true. To be a solution of an and inequality, it must make both parts true. For example: x≤−3 or x>2.
Given:
The ball should be BOTH greater than 28.5 AND less than 29 (although I don't think it's in inches...) Since it is not explicitly stated, let's assume we're talking about the basketballs diameter, D.
According to given question we have,
So now this may be written D > 28.5 and D < 29. Combining these two, we can write 28.5 < D < 29.
Also not explicitly stated is whether or not the basketball may be equal to 28.5 or 29. If, indeed, that is the case, then instead we may write this as D >= 28.5 and D <= 29, or combining, 28.5 <= D <= 29.
Therefore, the compound inequality is 28.5 <= D <= 29.
Learn more details about compound inequality here:
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Jason rented 4 movies. Jason plans to watch all 4 movies back to back. In how many different orders can Jason watch the movies?
Answers
Answer:
Its 16
Step-by-step explanation:
4 x 4 = 16
The total number of different orders in which Jason can watch the movies is 24
What is Combination?An arrangement of objects where the order in which the objects are selected does not matter.
If Jason is going to watch all 4 movies back-to-back, then there are 4 options for the first movie, 3 options for the second movie (since one movie has already been watched), 2 options for the third movie, and 1 option for the fourth movie.
Therefore, the total number of different orders in which Jason can watch the movies is:
4 x 3 x 2 x 1 = 24
Hence, Jason can watch the 4 movies in 24 different orders.
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help!! its a part A and part b question
(don't mind my answer for A I pressed it by accident)
Answers
Answer:
2cm is 5km
Step-by-step explanation:
16cm is 40km
Answer: 4e+6 centimeters
Step-by-step explanation:
Multiply the length value by 100000 and you'll get your answer.
40x100000= 4e+6 (Multiplied by length value).
Please help!! Will give brainiest!!
Data was collected on the amount of time that a random sample of 8 students spent studying for a test and the grades they earned on the test. A scatter plot and line of fit were created for the data.
scatter plot titled students' data, with points plotted at 1 comma 80, 2 comma 70, 2 comma 80, 2 comma 90, 3 comma 80, 3 comma 100, 4 comma 90, and 4 comma 98, and a line of fit drawn passing through the points 0 comma 70 and 1 comma 75
Find the y-intercept of the line of fit and explain its meaning in the context of the data.
80; a student who studies for 0 hours is predicted to earn 80% on the test
70; a student who studies for 0 hours is predicted to earn 70% on the test
10; for each additional hour a student studies, their grade is predicted to increase by 10% on the test
5; for each additional hour a student studies, their grade is predicted to increase by 5% on the test
Answers
Answer:
Step-by-step explanation:
The y-intercept of the line of fit is 70, which means that a student who does not study at all (0 hours) is predicted to earn a grade of 70%. In other words, the line of fit starts at the point (0,70), indicating that even if a student does not study at all, they can still earn a grade of 70% on the test. However, it should be noted that this prediction may not always hold true for all students and situations. The y-intercept provides a useful reference point for interpreting the rest of the data, and helps to establish a baseline for the relationship between study time and test grades.
Step-by-step explanation:
The y-intercept of the line of fit is 70, which means that a student who does not study at all (O hours) is predicted to earn a grade of 70%.
In other words, the line of fit starts at the point (0,70), indicating that even if a student does not study at all, they can still earn a grade of 70% on the test. However, it should be noted that this prediction may not always hold true for all students and situations. The -intercept provides a useful reference point for interpreting the rest of the data, and helps to establish a baseline for the relationship between study time and test grades.
A chemical plant takes 6 1/3 million gallons of water from a local river and puts
2 7/12 million gallons back into the river. How much water does not go back into the river?
SHOW WORK or i'll just take your answer off so someone else can answer -3-
Answers
Solve For X: 8.47 = 5.5 + X
Answers
Answer:
x=2.97
Step-by-step explanation:
Answer:
x=2.97
Step-by-step explanation:
8.47=5.5+x
Step 1: Simplify both sides of the equation.
8.47=x+5.5
Step 2: Flip the equation.
x+5.5=8.47
Step 3: Subtract 5.5 from both sides.
x+5.5−5.5=8.47−5.5
x=2.97
Hope it Helps!
1. Dot collected rainfall data for 5 days in October. If the total rainfall for the 5 days was 2.65 inches, how much rain fell on day 2?
Day 1) 0.34 Day 2) ? Day 3) 1.11 Day 4) 0.17 Day 5) 0.43
2. Lisa lives in Atlanta. She is going to a baseball game with her 2 sisters and her parents. They have $100 to spend. After they buy their tickets, how much money will they have left to buy refreshments?
Atlanta $14.45 New York $28.59 Los Angeles $19.67
3. Jack purchases 9 gallons of gas on Monday. He uses 2/3 of the amount purchased commuting to and from work during the week and an additional 2 gallons running errands. How many gallons of gas does John use for work and errands?
4. A family’s vacation destination is 800 miles from their home. They travel by car 6 hours on the first day of their trip. Their average speed is 45 miles per hour. The next day they travel 7 hours, averaging the same speed. How many miles are left for the family to travel?
Answers
#1 is 6.34
#2 is 27.25
#3 is Gallons of gas use for work and errands is 10.
#4 is 215
Hope this helps
The table shows the change in temperature each hour for four hours. Find the total change C in temperature.
Change in Temperature
7 A.M. - 8 A.M. −3°F
8 A.M. - 9 A.M. −1°F
9 A.M. - 10 A.M. +2°F
10 A.M. - 11 A.M. +8°F
Answers
Answer:
6
Step-by-step explanation:
-3 -1 +2 +8 = -4+10 = 6