Area ÷ Width = length
Area Width
20.5 ÷ 2.5 = 8.2
<u>answer: 8.2</u>
Answer:
Step-by-step explanation:
6. 78-2(3+16) /4
(78-2x19)/4
( 78 -38)/4
40/4=10
7.
(66/11)3 -6*8
6x6x6 -48
216-48=168
8.
10/7+2(8-11/2)
10/7+2(8-5.5)
10/7+2*2.5
10/7+5
10/7 + 35/7
45/7 =
Answer: 6.56hours.
Step-by-step explanation:
Given;
Mario and julio can wash 7 cars in 2hours
While only mario can wash 5 cars in 3hours
Let m represent the rate at which mario work
j represent the rate at which julio work
t represent the rate at which mario and jolio combined work.
t = m + j
j = t -m .......1
t = 7 cars per 2hours = 7/2 = 3.5cars/hour
m = 5 cars per 3hours = 5/3 = 1.67cars/hour
From eqn 1
j = t -m = 3.5 - 1.67 = 1.83cars/hour
So, to determine the number of time it will take julio to detail 12 cars
Where = number of cars detailed
N = rate × time = j × time
time = N/j
time = 12/1.83
time = 6.56 hours
Therefore, it will take julio to detail 12 cars is 6.56 hours.
Answer:1
Step-by-step explanation:
The answer is 4^3 and I believe that this is right
