Answer:

multiply all terms in the top equation by 2
multiply all terms in the second equation by -7. it would then add the two equations together to cancel out the variable x
You will then have two equations in terms of y
solve for y and either equation then substitute that value for y into the other equation then solve for x
Answer:
Billy is incorrect. The ratio of the number of apples to the number of peppers is 3:1
Step-by-step explanation:
See the attached figure to better understand the problem
Let
x ----> the number of apples
y ----> the number of peppers
we have


The ratio of the number of apples to the number of peppers is equal to

substitute

therefore
Billy is incorrect. The ratio of the number of apples to the number of peppers is 3:1
Answer:
L = 12
W = 20
Step-by-step explanation:
The perimeter of the rectangle is 64.
2L + 2W = 64
The length and width of a rectangle are in a 3:5 ratio.
3 + 5 = 8
64/8 = 8
2L = 8 * 3 = 24
L = 24/2 = 12
2W = 8 * 5 = 40
W = 40/2 = 20