The number of cars that can be washed in 8 hours.
Given: 128 cars are washed in 3 hours.

Question

The number of cars that can be washed in 8 hours.  Given: 128 cars are washed in 3 hours.

toroztatG · Accepted Answer

Calculation:
The number of cars that can be washed in 8 hours is n.
The proportion can be written as:

\frac{3}{128} = \frac{8}{n}

The ratios can be simplified further by doing cross product:

\frac{128}{3} = \frac{n}{8}

3 (n) = 8 (128)

3 n = 1024

\frac{3 n}{3} = \frac{1024}{3}

n = 341.33

n \approx 341

cars

Jeffrey Jordon · Accepted Answer

Answer is given below (on video)

karton · Accepted Answer

Step 1 1283=8n The cross product is 128×n=3×8 Solving for n n=3×8128 and reducing n=0.1875

user_27qwe · Accepted Answer

Step 1
Given: 128 cars are washed in 3 hours.
So, proportions:
$\frac{3}{128} = \frac{8}{n}$
Variable n cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 128 n, the least common multiple of 128, n.
$3 n = 128 \times 8$
Multiply 128 and 8 to get 1024.
$3 n = 1024$
Divide both sides by 3.
$n = \frac{1024}{3}$
$= 341 \frac{1}{3} \approx 341.333333333$
Answer: 341 cars

The number of cars that can be washed in 8

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