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Harlamova29_29 [7]
3 years ago
8

A catering company’s recipe for salad uses a ratio of 2 c of dressing to 4 lb of vegetables. (Hint: c = cups; lb = pounds) (a) H

ow many cups of dressing will be needed if 30 pounds of vegetables are used? (b) Draw a model for the ratio. The butterfly method works well for this.

Mathematics
1 answer:
IRISSAK [1]3 years ago
7 0

Answer:

A. 15 cups

B. Diagram below

We are given that,

The ratio of dressing to the vegetables is 2 cups : 4 pounds.

A. It is given that the vegetables are of 30 pounds.

Let the number of cups be x.

Since, the ratio of dressings and vegetables will remain same.

We have,

\frac{2}{4}=\frac{x}{30}

i.e. x=\frac{2\times 30}{4}

i.e. x= 15

Thus, we will need 15 cups of dressings for 30 pounds of vegetables.

B. As we have obtained the fractions,

2 cups : 4 pounds and 15 cups : 30 pounds

Using the butterfly method, we see from the diagram that these fractions are equivalent because the product of the numbers is equal to 60.

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