Question 4.4.5: A food wholesaler charges a restaurant chain $83 for 3 crate......
A food wholesaler charges a restaurant chain $83 for 3 crates of lettuce. How much should it charge for 5 crates of lettuce?
Step-by-Step
Let x be the cost of 5 crates of lettuce. Set up a proportion with one ratio the number of crates and the other ratio the costs. Use this pattern.
\frac{Crates}{Crates} = \frac{Cost}{Cost}
Now substitute the given information.
Cross multiply and use the cross products to solve the proportion.
3x = 5(83)
3x = $415
x = $138.33 (rounded to the nearest cent)
The 5 crates cost $138.33.
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