Answer:
Step-by-step explanation:
Donna's Rate is 
Rico's Rate is 
Cross-Multiply
Donna's Rate is 
Rico's Rate is 
L = length
w = width
r = diagonal, or hypotenuse
In order to solve this, you must use the Pythagorean theorem (a^2 + b^2 = c^2)
L = w + 9 = a
w = ? = b
r = 10 + w = c
Solve like so:
a^2 + b^2 = c^2
(w + 9)^2 + w^2 = (10 + w)^2
(w + 9)(w + 9) + w^2 = (10 + w)(10 +w)
w^2 + 18w + 81 + w^2 = w^2 + 20w + 100
2w^2 + 18w + 81 = w^2 + 20w + 100
w^2 + 18w + 81 = 20w + 100
w^2 + 81 = 2w + 100
w^2 - 19 = 2w
2 = w - 19/w
w = 2 + 19/w
w ends up being equal to 5.47 as a decimal answer. The work to solve this equation further would require me to spend another couple hours to present. So if you wish to see how this is done, go to quickmath.com.
$7.92 is a reasonable amount for each of them to pay.
Answer:
-3.274
Step-by-step explanation:
attached
Hopes this helps
{please mark me brainiest}
Answer: You need to graph it on the jiyrdjnyfjndfyhghjkhn. Then eat
Step-by-step explanation: No
