Answer:
Multiply the second equation by 2
Step-by-step explanation:
If you do that you will get 2y in the first equation and -2y in the second equation. then, you can add the 2 equations to get rid of y.
Answer:
2
Step-by-step explanation:
For elimination problems, you have to have the variables that you want to cancel out equal in value but opposite in sign.
Since you are trying to cancel out y and you are changing the second equation, look at the first equation.
The y variable is +2y. This means that the second equation with a y variable of -2y.
Since the the second equation's y variable is -y, multiply it by 2.
-y x 2 = -2y
Jada flips 3 quarters. What is the probability that all 3 will land showing the same side?
Answer:
25%.
Step-by-step explanation:
Hope this helps!
Answer
1 in 3 chance
Step-by-step explanation:
The chance of two landing on the same side is higher then all 3.
Question is there ⬇️⬇️⬇️⬇️⬇️⬇️⬇️
Answer:
4.9
Step-by-step explanation:
for this I used the sine rule so I did 6/sin 70 × sin 50
One band’s streaming video concert to benefit a global charity costs $1.00 to view. The first day, the concert got 2,187 views. The second day, it got about three times as many views. On the third, it got three times as many views as on day two. If the trend continues, how much money will the band have raised in one week?
What is the answer to this question and how would I solve it for when I have another question like it
Answer:
12.5663706144
If necessary, and if your system/teacher allows it, just keep it down to 1-3 decimals.
Hope I could help! :D
n someone help me withs ASAP
Answer:
I believe it's the second one
Step-by-step explanation:
The greatest common factor of 44 and 40 is four, so 4 times 11 is 44 and 4 times 10 is 40. that gives you 44 + 40
Simplify by combining like terms 5 4/7i+4 3/5i
So far this year, Adam has played 30 games of chess and has only won 6 of them. What is the minimum number of additional games he must play, given that he is sure to lose at least one-third of them, so that for the year he will have won more games than he lost?
A) 24
B) 57
C) 87
D) It is not possible for Adam to do this.
The correct answer is B) 57, but not sure how?
Answer:
Step-by-step explanation:Yikes. Just so we’re all clear—this is not a real SAT question.
So far, Adam’s record is 6 wins/30 games. If he plays x more games, his record will be:
image
You find the minimum x such that the fraction is greater than ½, which would mean he won more than ½ of his games.
Let’s do some math!
image
So if he plays 54 more games, and wins 2/3 of them, he’ll have the same number of wins as losses. Check on that to make sure: He’ll have played 30 + 54 = 84 games, and won 6 + (2/3)54 = 42 of them. Yep, that works.
Now here is where it gets tricky (and why this question is not SAT-caliber). Remember that he’s losing 1/3 of his games. If his 52nd, 53rd, and 54th additional games were win, win, loss, then he would have had, very briefly, a winning record after his 53rd additional game.
His 55th additional game is another chance at a winning record. If he loses that game, then he’ll win the next two, and have a winning record for sure by the 57th additional game. From there, if he continues winning 2/3 of his games, he’ll have a winning record forever.
Renting video games from Store A costs $3.50 per game plus a monthly fee of $7.50. Renting video games from Store B costs $5.00 per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v rented. Which inequality represents the situation when the monthly cost at Store A is less than the monthly cost at Store B? A) 3.5v + 7.5 > 5v B) 3.5v + 7.5 7.5v D) 3.5v + 5 < 7.5v
Please help me I will give out the brain thing.
Answer:
A
Step-by-step explanation:
Answer:
A) 3.5v + 7.5 < 5v
Step-by-step explanation:
per game means the letter v, so it would be 3.5v and 5v. Store A, is 3.5v + 7.5, and Store B is, 5v. So, all you have to know is the difference between greater than or equal to, less than or equal to, less than, and greater than. So for this problem less than is < .
Tip: greater than: >
less than: <
Evaluate \(\sqrt{48} -4\sqrt{3}\)
Please help it's due at 10 and its 9:24
I've been working on some other papers for hours
Answer:
51.1147540984
Step-by-step explanation:
What we know:
- 61 feet per second
- 3118 feet
- 187 feet speed
- Duration: 3118 divided by 61 = 51.1147540984
D stands for distance - 3118 feet
R stands for rate of speed - 187 feet
T - time
clark collects some comic books, some based on history and some fictional. if the ratio of historical comics to fictional comics is 5:2, how many comics could clark have?
Answer:
The answer is 10:4
Step-by-step explanation:
Its 10:4 because 5 x 2 = 10 and 2 x 2= 4 so that would equal 10:4
A car leaves the school traveling west at 40 miles
per hour. After it travels 20 miles, a motorcycle
follows the car, traveling at 50 miles per hour.
After how many hours will the motorcycle catch
up with the car and how many miles?
Create a system of equations
40x(car speed) +20(distance already traveled) = 50x (motorcycle speed)
simplify
40x+20=50x
20=10x
x=2
2 hours
Create a system of equations
40x(car speed) +20(distance already traveled) = 50x (motorcycle speed)
simplify
40x+20=50x
20=10x
x=2
2 hours
(HELP PLEASEE SOMEONE I'LL GIVE BRAINLIESTT if correct) If b/a=c/b=d/c=2/3, find the value of a:b:c:d
Answer:
3:3:2:3
Step-by-step explanation:
b/a = 2/3 = b is 2 a is 3
c/b = 2/3 = c is 2 b is 3
d/c=2/3 = d is 2 c is 3
All you have to do to solve this question is to lay out all the variables and see which number matches with which.
Answer:
might be c
Step-by-step explanation:
a − b/c − d = 2 and a − c/b − d = 3 will hold for any values of a, b, c and d as long as
b≠0; c≠0
b/c − c/b = 1
and
a − d = 2 + b/c
If you let x = b/c, b/c − c/b = 1 becomes x − 1/x = 1
⇒ x2 − x − 1 = 0
⇒ x = 1.618 or x =−0.618.
So
b/c = 1.618 or b/c =−0.618 is required.
The values of a, b, c and d are arbitrary subjected to
b/c = 1.618 or b/c =−0.618 and a − d = 2 + b/c.
Let c and d be the free variables, and let x = d/c then
a − d/b − c = (1 − c/b)x + 2 + c/b
Could someone please help me on this question? I need help!!
Answer:
Step-by-step explanation:
do you think you could take a closer up one then I will help you.
hey, guys id prefer it if someone could walk me through this step by step thx! Write an expression that is equivalent to the expression below. 3.5(2.4x+8.6y)-2.9(5x-6.5y)-(3.1x+7y)
Answer:
Step-by-step explanation: ok so first you need to circle all your variables x.
which are 2.4x+5x+3.1x adding those you get 10.5.
then circle your variables y which is 8.6y+6.5y+7y you get 22.1 then subtract those you get -11.6
hope this helps
PLZ BRAINLIEST PLZ
Answer:
Pls need points
Step-by-step explanation:X=25472.384
help me this one plssssssssssss
Answer:
The integer that describes the translation from B to B' is (-2,1)
Select the correct scientific notation form of this numeral.
2,000,004
2.400 000 × 10 6
2.4 × 10 6
2 × 10 6
2.000 004 × 10 6
Identifying the values a, b, and c is the first step in using the Quadratic Formula to find solution(s) to a quadratic equation.
What are the values a, b, and c in the following quadratic equation?
−6x2 − 8x + 12 = 0
a = −6, b = −8, c = 12
a = 6, b = 8, c = 12
a = 8, b = 12, c = 0
a = −8, b = 12, c = 0
Answer: A!
Step-by-step explanation: The quadratic formula is ax2+bx+c, so you just plug in and see which ones go with the equation, a=-6 (-6x2) b=-8 (+-8 or -8) and c=12 (+12) Hope this helps
if u know it help???????
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP! Would love the answer as soon as possible.
What is the value of x?
Answer: x=148
Can anyone help me pls ( I'll give brainliest) no links pls
Stephanie is helping her band collect money to fund a field trip.
The band decided to sell boxes of chocolate bars. Each bar sells
for $1.50 and each box contains 20 bars. Below is a partial table
of monies collected for different numbers of boxes sold.
Boxes Sold (b) Money Collected (m)
1 $30
2 $60
3 $90
4 $120
5 $150
6 $180
7 $210
8 $240
1.) Complete the table above for all values of m.
2.) Which is the independent variable?
3.) Which is the dependent variable?
4.) Write an equation for the amount of money, m, that will be
collected if b boxes of chocolate bars are sold.
5.) Graph the equation using the ordered pairs from the table
above.
(Don’t forget to label your axes and increments!)
6.) How much money will be collected if 100 boxes of chocolate
bars are sold?
7.) The band collected $1530 from chocolate bar sales. How
many boxes did they sell?
Answer:
Step-by-step explanation:
for the table for every box just add 30 more dollars 1.5x20=30
The independent variable is I believe the box of candy bars
And the dependent is the money collected
m=30b since a 1 box is 30 dollars
m=30(100)
m=3000 they will make 3,000 dollars with 100 boxes
1530=30b
/30. /30
51=b
51 boxes of chocolate bars when they make $1530 dollars
Graph will be below
please help i really need this done
Answer:
Step-by-step explanation:
Answer:
Place the dot in the middle of -1 and -2!
Step-by-step explanation:
You have to add 2 -2 2/6 and 5/6 that will get you -1 3/6. Then you have to find where it goes. If you would simplify the number you would get -1 1/2. This means the dot would be placed in the middle of 2 numbers. Since it is 1 and 1/2 you would need to place it between -1 and -2.
Hope this helps!
x-2y=3, x^2-2y=3, x^2-2xy+4y^2=11, find the value of x^2y-2xy^2
This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:
x^2-2y=3 - (x-2y=3) => x^2-x=0
Then we can factor the resulting equation and find the values of x:
x^2-x=0 => x(x-1)=0 => x=0 or x=1
Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:
x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1
Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:
x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1
Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.
Evaluate the expression when c=12 and d=112.
3(14+c2)+2d
Answer:
\(\boxed{\boxed{\sf 698}}\)
Step-by-step explanation:
\(\sf 3(14+c^2)+2d\)
\(\longmapsto\sf c=12\)
\(\longmapsto\sf d=112\)
Substitute c with 12, and d with 112:
\(\Box \:\: \sf 3\left(14+12^2\right)+2\times \:112\)
we'll follow the PEMDAS order of operations:
→ Parentheses
→ Exponents
→ Multiplication
→ Division
→ Addition
→ Subtraction
_______________________________
\(\boxed{\sf 1}\) Calculate within the Parentheses:
\(\mapsto \sf \left(14+12^2\right)\)
\(\mapsto \sf 14+144\)
\(\mapsto \sf 158\)
____________________
\(\boxed{\sf 2}\) Multiplication/ Division:
\(\mapsto \sf 3\times \:158+2\times \:112\)
\(\mapsto \sf 474+2\times \:112\)
\(\mapsto \sf 474+224\)
____________________
\(\boxed{\sf 3}\) Addition/ Subtraction:
\(\mapsto \sf 474+224\)
\(\mapsto \sf 698\)
______________________________________
A train moves at a speed of 60 miles per hour. How many yards per minute does the train travel? There are 1,760 yards in a mile and 60 minutes in an hour. (10 points)
*blank* yards per minute.
Answer:
THE OTHER PERSON IS RIGHT
Step-by-step explanation:
Answer:88 feet per second.
Step-by-step explanation:
60 × 1760 × 3 60 × 60
hope it helped :)
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
Learn more about functions at: https://brainly.com/question/25638609
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
PLEASE HELLPPPP!!!! I HAVE NO IDEA WHAT IM DOING
Answer:
A
Step-by-step explanation:
I think A is the answer because Its the closest one to the plot and what question is asking for
84 is the product of Donnie's savings and 7
use the variable d to represent Donnie's savings
Find the length of a side of a square if its area is: x units
Explain this out in expression form
Answer:
√x
Step-by-step explanation:
area = side × side = side²
√area = √(side²)
side = √area
area = x
side = √x
Answer: √x
Answer:
√x
Step-by-step explanation:
Find the length of a side of a square if its area is: x units²
Area = l²
inverse formulal = √Area
so your answer is
√x
The line segments are translated 2 units to the left to form A′B′ and C′D′. Which statement describes A′B′ and C′D′?
Line segments A′B′ and C′D′ do not intersect and are closer together than AB and CD.
Line segments A′B′ and C′D′ intersect at (−2, 0) and are two times farther apart than AB and CD.
Line segments A′B′ and C′D′ intersect at (0, −2) and are two times farther apart than AB and CD.
Line segments A′B′ and C′D′ do not intersect and are the same distance apart as AB and CD.