X + 8x = 81
9x = 81, x = 9
y = 8(9), y = 72
Solution: (9, 72)
Answer:
He made seven A's.
Step-by-step explanation:
360-220=140
140/20=7
Answer:
7,11
Step-by-step explanation:
The width is x. x+4= the length. The area is side times side, so it’s
x × (x+4) = 77
We can simplify this to:
x × x + x × 4 = 77
x^2 + 4x = 77
x^2 + 4x - 77 = 0 This is a quadratic equation. So we can solve using the quadratic formula:
x =
->


That’s the positive solution and that’s x, the width. So the width is 7 and the length is 7+4=11
Answer: Your answer is 1.308
Step-by-step explanation: Yw and I sure hope this helps U. And pls mark me as brainiest
The constant of proportionality (k) equals the total price (y) divided by the number of cans (x).
Step-by-step explanation: