<u>ANSWER: </u>
One cup of cornstarch weighs 4.5 ounces.The cost of 1 cup is $0.286 approximately.
<u>SOLUTION:
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Given, One cup of cornstarch weighs 4.5 ounces.
The price of cornstarch was $0.98 per pound.
We need to find 1 cup cost.
Cost of a cup is product of cornstarch weight in cup and price of cornstarch per pound.
1 cup cost = cornstarch weight price of cornstarch per pound.
Here, both the terms are in different units, we need to convert them into single unit.
Let us convert ounces into pounds
We know that, 1 pound = 16 ounces
1 ounce = pound
Now, one cup of cornstarch weighs 4.5 ounces
Then, cup of cornstarch weight in pounds =
=
= 0.28125 pounds
Now, cost of 1 cup = cornstarch weight x price of cornstarch per pound
= 0.28125 x 0.98
= 0.275625
Hence, the cost of 1 cup is $0.286 approximately