If 5lb of pasta salad serves 14 people, how much pasta salad should you bring to a picnic with 49 people?

Question

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Answer 1

5/14=.357.1428......

*49=17.5lbs

Answer 2

This is a ratio, cross multiplication problem.

On one side of the equal sign you will have the known ratio, on the other side you will have one known and one unknown. And the denominator will be the same subject and the numerator will be the other subject. See below for more explanation.

1. Say the number of people will be on top (numerators) and the pounds will be the denominators.
2. Left side will be your given (known) information: 14 people/ 5 lbs
3. Right side will be your partial known information: 49 people/ X lbs
4. Equal sign in between both ratio's:

14 = 49

---- ----- Now cross multiply (upper left times lower right = upper right times lower left)

5 X

14(X) = 49(5); 14X = 245 divide both sides by 14 and solve for X

X = 17.5 lbs is what you will need to feed 49 people.

I hope this helps you understand how to set up and solve this type of problem