First, you have to set up two equations.
X + y = 45
18x + 24y = 1,050
To do this, you have to solve for an exponent by cancelling out the other one. To solve for y, you multiply everything in the first equation by -18.
-18x -18y = -810
This cancels out the x and leaves you with 6y = 240. Divide both sides by 6 and you have the number of Yankee hats that were bought.
Then, you have to substitute 40 for y in the first equation and solve for x.
Answer:
Linear
Step-by-step explanation:
It is linear as it has degree 1.
X = Leonard, y = Liam
x = y + 7
3x + 2y = 96
now we sub
3(y + 7) + 2y = 96
3y + 21 + 2y = 96
5y = 96 - 21
5y = 75
y = 15
x = y + 7
x = 15 + 7
x = 22
<span>Liam has 15 and Leonard has 22. </span>
Um well KCF stands for Keep Change Flip which is used for dividing fractions... ask if you need a better description ☺️
Answer:
Add 4 positive unit tiles to each side.
Step-by-step explanation:
The original equation is:
3x - 4 = 2x + 5
After adding 4 positive unit tiles to each side, we get:
3x - 4 + 4 = 2x + 5 + 4
3x = 2x + 9
which simplifies the original equation, because at the beginning there were independent terms at both sides of the equal sign and now all independent terms are on the right side (the +9 term). Notice that the other options don't give this result.