$5 each car
3 hours = 12 cars
÷3 ÷3
1 hours = 4 cars
×8 ×8
8 hours = 32 cars
32 cars × $5 per car =
$160
They earned $160 in 8 hours, from washing 32 cars.
It really just depends on how fast or how slow they eat but the second brother will get done eating first
Answer:
9y + 4z + 9x
Step-by-step explanation:
Answer:
(5x+12) (5x-12)
Step-by-step explanation:
Use the difference of squares fromula. ![a^{2} -b^{2} =(a+b)(a-b)](https://tex.z-dn.net/?f=a%5E%7B2%7D%20-b%5E%7B2%7D%20%3D%28a%2Bb%29%28a-b%29)
Where a = 5x and b =12.
Answer: 80 ft²
Step-by-step explanation:
The area of a trapezoid is one half the product of the height and the sum of the lengths of the bases.
(6 + 10) * 0.5 * 10 = 80 (ft²)