Question

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One brand of canned salmon is sold in four different sizes.
Size A The 7 1/5 -ounce can costs $3.49.
Size B The 16 1/2 -ounce can costs $6.49.
Size C The 24 3/4 -ounce can costs $8.49.
Size D The 30 2/3 -ounce can costs $10.99. What is the unit rate for each size to the nearest cent? If the cost is less than a dollar, put a zero to the left of the decimal point.
Size Unit rate
A Blank
B Blank
C Blank
D Blank

What size is bast to buy? explain how you know



INSERT TEXT BOX HERE

Answer 1

The answer is A.

Answer 2

Answer: Size D is the best buy.

Explanation:

Since we have given that

Size A The 7 1/5 -ounce can costs $3.49.

Unit rate would be

`3.49/ 7(1)/(5)\\\\=3.49/ (36)/(5)\\\\=3.49* (5)/(36)\\\\=\$0.48`

Size B The 16 1/2 -ounce can costs $6.49.

Unit rate would be

`6.49/ 16(1)/(2)\\\\=6.49/ (33)/(2)\\\\=6.49* (2)/(33)\\\\=\$0.39`

Size C The 24 3/4 -ounce can costs $8.49.

Unit rate would be

`8.49/ 24(3)/(4)\\\\=8.49/ (99)/(4)\\\\=8.49* (4)/(99)\\\\=\$0.34`

Size D The 30 2/3 -ounce can costs $10.99

Unit rate would be

`10.99/ 30(2)/(3)\\\\=10.99/ (92)/(3)\\\\=10.99* (3)/(92)\\\\=\$0.33`

since all the unit rates are less than 1 dollar.

so, Size Unit rate

A 0

B 0

C 0

D 0

Hence, Size D is the best buy.