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How do I make a math problem that includes using tomato sauce in spaghetti as a ratio?

User Wariored
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Mario & Luigi are making spaghetti and tomato sauce for dinner. For every 1 lb of spaghetti, they use 16 oz of tomato sauce.

a) Write a ratio showing the pounds of spaghetti to sauce ratio.

(answer: The ratio is 1:16.)

b) Mario & Luigi are having friends tonight! They plan to make 2 lbs of spaghetti. How many ounces of sauce do they need to keep the same ratio that you wrote in part a above?

(answer: 32 oz of tomato sauce.)