Answer:
0.3
Step-by-step explanation:
Correct answers only!
After conducting a survey of all her classmates Midge discovers that the amount of money everyone spends buying books each month has a mean of $30. What does the mean say about the amount of classmates spend on books?
Half of her classmates spent exactly $30 per month buying books.
Half of your classmates spent more than $30 per month buying books.
The majority of her classmates spent $30 per month buying books.
If the amount spent on books per month by all her the classmates is leveled, the amount will be $30.
Answer:
C: The majority of her classmates spent $30 per month buying books.
Step-by-step explanation:
The mean is the average of the numbers -> its C
Answer:
C
Step-by-step explanation:
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
The following figure shows a right triangular prism. Which expression represents the surface area of the prism?
you have to do all of the questions and add the answers together
Answer: Where is the question?
Step-by-step explanation:
I'm sorry, I'm not sure what you mean. Could you please clarify which questions you are referring to and what you would like me to add together?
Paolo purchased a shirt at store A. He paid $19.50 for the shirt. Raoul purchased the same shirt at store B for $22.35.
How much money did Paolo save by purchasing the shirt at store A instead of at store B?
Enter your answer in the box.
$???
Answer:
2.85
Step-by-step explanation:
you take 22.35-19.50
A photo of a beetle in a science book is increased to 778% as large as the actual size. If the beetle is 15 mm, what is the size of the beetle in the photo
Answer:
Step-by-step explanation:
If the beetle is 15 mm in actual size, and the photo is increased to 778% of the actual size, then we can find the size of the beetle in the photo by multiplying its actual size by 7.78:
Size of beetle in photo = Actual size of beetle x 7.78
Substituting the given value of the actual size, we get:
Size of beetle in photo = 15 mm x 7.78
= 116.7 mm
Therefore, the size of the beetle in the photo is 116.7 mm.
Simplify the following expression
3(7n-8)
Answer:
21n - 24
Step-by-step explanation:
Pls help! Will give brainliest!!
Considering area (A) of garden as 30 square feet:
30 = x(2x+7)
Now we need to expand it:
x(2x+7) = 2x^2 + 7x
2x^2 + 7x = 30
Adding this into an Algebra calculator gives us 5/2 or 2.5
So x = 2.5
To prove this:
2(2.5) + 7 = 12
14 * 2.5 = 30
The same art teacher estimates that he has enough clay for 9 students. Is he correct? Why?
Remember: He has 47 1/3 pounds of clay and wants to give each student 2 1/2 lbs of clay.
*Use compatible numbers to estimate. These are numbers that are close to the actual numbers that you know will divide easily.
Answer:
The art teacher is incorrect.
Step-by-step explanation:
Coming Up with Compatible Estimate Numbers:
The teacher has 47 1/3 pounds of clay. We can round this to 50. Now we have 50 pounds of clay.
Explaining the Operations:
The teacher wanted to distribute the clay by 2.5 lbs. This means we need to divide the amount of clay by 2.5.
Performing the Operations:
Divide 50 by 2.5 ---> 50÷2.5=(5÷2.5)*10--->5÷2.5=2--->2*10=20
Final Conclusion
For every student, the art teacher plans to give 2.5 lbs of clay. This means he will divide his 47 1/3 pounds by 2.5 piles and hand them out to the students. If we round 47 1/3 to 50 (about 2 points higher) and divide 50 by 2.5, you get 20. This means he would have a little less than enough clay for 20 students, not 9. Therefore, the art teacher is incorrect.
****ANOTHER POSSIBLE SOLUTION****
You can also multiply 9 x 2.5 and see if the product is close to 47 1/3. In this case, you can round 2.5 to 3 and proceed with the multiplication. 9*3=27 Since 27 is a lot lower than 47 1/3, the art teacher is incorrect.
Find the measures of the supplementary angles that satisfy each case. m∠1:m∠2=5:4
Answer:
100 and 80 degrees
Step-by-step explanation:
Supplementary angles add up to 180 degrees. Here we are to find two such angles that are in the ratio 5:4. To do this, we set up and solve the following equation:
5x + 4x = 180, or
9x = 180, or
x = 20.
Then one angle is 5(20) and the other is 4(20), or 100 and 80.
Note that these two angles add up to 180 degrees, as they must.
The two supplementary angles are 100 and 80 degrees.
Answer:
I apologize for the confusion caused. Let's go through the problem again to determine the correct answer.
We have a police helicopter flying at 120 mph at an altitude of 1.5 miles above a highway. The radar detects an oncoming car at a distance of exactly 3 miles from the helicopter, and this distance is decreasing at a rate of 190 mph.
To find the speed of the car, we need to consider the relative motion between the car and the helicopter. From the perspective of the helicopter, the car's speed is the sum of its own speed and the rate at which the distance is decreasing.
Let's denote the speed of the car as "v_car" and the speed of the helicopter as "v_helicopter." The relative speed between the car and the helicopter is the difference between the two speeds, given by:
Relative speed = v_car - v_helicopter
Since the distance between the car and the helicopter is decreasing at a rate of 190 mph, the relative speed is -190 mph (negative because the car is approaching the helicopter).
However, since we want to find the speed of the car, we need to consider the magnitude of the relative speed. Taking the absolute value, we have:
|Relative speed| = |v_car - v_helicopter| = |-190|
Now, let's solve for the speed of the car:
|v_car - 120| = 190
We can solve this equation by considering two cases:
Case 1: v_car - 120 = 190
v_car = 190 + 120
v_car = 310 mph
Case 2: -(v_car - 120) = 190
-v_car + 120 = 190
v_car = 120 - 190
v_car = -70 mph
Since speed cannot be negative, we discard Case 2.
Therefore, the correct answer is that the speed of the car, as detected by the radar, is 310 mph.
THIS QUESTION ANSWERLet's assume that the measure of angle 1 is represented by "x" and the measure of angle 2 is represented by "y". We are given that the ratio of the measures of angle 1 to angle 2 is 5:4. This can be expressed as:
x:y = 5:4
Since the angles are supplementary, the sum of their measures is 180 degrees:
x + y = 180
To solve this system of equations, we can use the ratio given to express one variable in terms of the other. Let's express "x" in terms of "y":
x = (5/4) * y
Substituting this expression for "x" into the second equation:
(5/4) * y + y = 180
Multiplying through by 4 to eliminate the fraction:
5y + 4y = 720
9y = 720
Dividing both sides by 9:
y = 80
Substituting the value of "y" back into the expression for "x":
x = (5/4) * 80
x = 100
Therefore, the measures of the supplementary angles that satisfy the given ratio are angle 1 with a measure of 100 degrees and angle 2 with a measure of 80 degrees.
I am very sorry maybe I did mistake in the previous questions answer so this is the revised ONE and sO please DO SEE once okay !!!
Before you multiply or divide a fraction by a mixed number, you have to make sure they are both in the same___________?
Answer:
Step-by-step explanation:
form. Meaning you need make both fractions improper
Error Analysis: A store is instructed by corporate headquarters to put a markup of 67% on all items. An item costing $6 is displayed by the store manager at a selling price of $4. As an employee, you notice that this selling price is incorrect. Find the correct selling price. What was the manager's likely error?
Part 1: The correct selling price is (Round to the nearest dollar as needed.)
Part 2: What was the manager's likely error?
A. The manager set the selling price at the markup.
B. The manager subtracted the markup from the cost instead of adding it.
C. The manager set the selling price at the cost.
D. The manager added the markup to the cost instead of subtracting it.
Answer:
To find the correct selling price, we need to first find the cost of the item plus the markup. We can do this by multiplying the cost of the item by the markup percentage: $6 * 67% = $4.02. However, since the question asks us to round to the nearest dollar, we can round this number down to $4.
Therefore, the correct selling price is $4.
The manager's likely error was that they set the selling price at the cost (option C).
Step-by-step explanation:
The correct selling price is $10 and the manager set the selling price at the markup so option (A) is correct.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Cost of item = $6
Markup = 67%
67% of $6 ⇒ 0.67 x 6 = $4.02
Add the markup in the cost = $6 + $4.02 = $10.02
Round to nearest dollars = $10.2 ≈ $10.
The manager put $4 which is a markup instant of the selling price of $10.
Hence "The correct selling price is $10 and the manager set the selling price at the markup".
For more about the percentage,
brainly.com/question/13450942
#SPJ2
Write down the inequality for x that is shown on this line.
Answer:
x>3
Step-by-step explanation:
An open circle on a graph indicates greater than or less than and since the line points to the right then it'd be greater than and the circle is on 3.
Karl set out to Alaska on his truck.
The amount of fuel remaining in the truck's tank (in liters) as a function of distance driven (in kilometers) is
graphed.
How much fuel did the truck consume every 100 kilometers
Answer:
the amount of fuel consumed every 100 kilometers is 62.5 litres.
Step-by-step explanation:
To determine the amount of fuel consumed every 100 kilometers.
Note: since the graph is a straight line graph (linear graph) the amount of fuel consumed every 100 kilometers is constant (i.e the same for every 100 kilometers). So, we only need to derive the amount of fuel consumed any 100 kilometers on the graph.
From the graph, the amount of fuel consumed for the first 100 kilometers is;
\(F = F_0 - F_{100} .........................1\)
\(F_0 = 500\\F_{100} \simeq 437.5\\\)
substituting into equation 1.
\(F = F_0 - F_{100} \\F = 500 - 437.5\\ F = 62.5 litres\\\)
Therefore, the amount of fuel consumed every 100 kilometers is 62.5 litres.
Answer:500
Step-by-step explanation:got it on Kahn
Work out the size of angle m.
Answer:
78+25+61+55+64=283
360-283=77
180+77=257
i need help ASAP!!!!!
Answer:
3/8
Step-by-step explanation:
The circle is cut into 8ths, and we got 3 so, it's 3/8ths.
Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?
Step-by-step explanation:
Let's assume the amount Mackey initially invested in the 6% account is x dollars.
According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.
The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.
The total interest earned in the year is given as $737.50, so we can set up the equation:
0.06x + 0.085(x + $1000) = $737.50
Simplifying the equation:
0.06x + 0.085x + 0.085($1000) = $737.50
Combining like terms:
0.145x + $85 = $737.50
Subtracting $85 from both sides:
0.145x = $737.50 - $85
0.145x = $652.50
Dividing both sides by 0.145:
x = $652.50 / 0.145
x ≈ $4500
Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.
$4500
$4500
$4500
$4500
Please solve this equation
-3(5-2z)=z+10
Someone help me with this ASAP!
Answer:
48.1 somewhere around 36 and 57
Step-by-step explanation:
Answer:
36-57
Step-by-step explanation:
18.50 x 2.6 = 48.10, which is between those two numbers
The diameter of the cracker shown is 35 millimeters.
Which measurement is closest to the area of the cracker in square millimeters?
A 781.751 mm²781.751 mm²
B 109.9 mm²109.9 mm²
C 961.625 mm²961.625 mm²
D 54.95 mm²
C
Step-by-step explanation:
Diameter = 35 mm
Radius = 35 ÷ 2 = 17.5 mm
Area = pi × r² = pi × 17.5² = 962.112
The closest one is C
Explain why 10 - 8 - 2 has a different answer to 10 - (8-2)
Explain why 10 + 8 - 2 is the same as 10 + (8 - 2)
Why is addition the same when parentheses is added to the subtraction 8 - 2, but subtraction is not the same?
Answer:
see explanation
Step-by-step explanation:
10 - 8 - 2 ← perform the first subtraction
= 2 - 2
= 0
while
10 - (8 - 2) ← evaluate parenthesis
= 10 - 6
= 4
What is the volume of a sphere
Answer:
V=4
3πr3
Step-by-step explanation:
Answer: The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere. The volume V of a sphere is four-thirds times pi times the radius cubed. The volume of a hemisphere is one-half the volume of the related sphere. Note : The volume of a sphere is 2/3 of the volume of a cylinder with same radius, and height equal to the diameter.
hope this helps have a nice day❤️
Step-by-step explanation:
Fastest answer gets brainliest answer!
Leon is scuba diving at an elevation of −72
feet when his friend signals to come higher to see a sea turtle. Leon makes 3 ascents, each an equal distance, to reach an elevation of −18
feet, where the sea turtle is located.
What was Leon's elevation after his second ascent?
Answer: -36 feet
Step-by-step explanation:
72-18 = 54 feet ascended
54 feet / 3 ascents = 18 feet per ascent
18 feet * 2 ascents = 36 feet
-72+ 36 = -36 feet
Complete the equations with powers of 10.
Answer:
10³
10²
10¹
Step-by-step explanation:
411.92×1000=411,920
411.92×100=41,192
411.92×10=4,119.2
Answer:
10³
10²
10
Step-by-step explanation:
411.92 × 10³ = 411920
411.92 × 10² = 41192
411.92 × 10 = 4119.2
I HAVE ANOTHER CLASS TOMORROW AND NEED TO FINISH IT RIGHT NOW (MAYBE 20 MIN MAX) SOMEBODY PLEASE HELP, ME! ANY ANNOYING OR FAKE ANSWERS WILL BE REPORTED AND I AM NOT JOKING ABOUT THIS!
Answer:
69420
Step-by-step explanation:
3 x 7+x is 69420 so thats the answer ez
thomas visits a circular play yard for pets as shown use your formula to find the area to the nearest square meter of this yard use 3.14 for pi
Answer:
Step-by-step Malik stops at the grocery store to buy a bag of diapers and 2 cans of formula. He spends a total of $37. The next week he stops and buys 2 bags of diapers and 5 cans of formula for a total of $87. How much does a bag of diapers cost? How much is one can of formula?
explanation:
Answer:
There needs to be a diagram with your question
Step-by-step explanation:
PLEASE HELP ME ASAP!!!!!!!!!! THE QUESTION AND STUFF IS IN THE PHOTO BELOW!!!
Answer:
8,29,11,12
Step-by-step explanation:
Use pythagoren theorem
a^2+b^2=c^2
Answer: 8,29,11,12
Step-by-step explanation:
What is the answer to -y - 10y?
Answer:
-11y
m
m
m
m
m
.
m
....
m
nhijffygvccxtbv
Answer:
-11y
Step-by-step explanation:
Subtract 10y from −y.−11y
math
screenshots
every question will ask to find the slope.
thank you
happy/hoppy easter-eve
Translate the sentence into an equation. Two less than the product of 5 and a number equals 9. Use the variable c for the unknown number.
Answer:
The equation is: \(5c-2=9\)
Step-by-step explanation:
Since 2 less than the product of 5 and a number c is equal to 9, it follows:
\(5c-2=9\)