Question

An 18 1/2 - fluid ounces bottle of water costs $3.79. What is the unit rate? Round to the nearest cent.

A 3 2/5 - pound bag of yarn costs $5.25. What is the unit rate? Round to the nearest cent.

Answer 1

The rate would be $3.79/18.5 per ounce

= $..... / ounce

Explanation:

Answer 2

$0.20 per ounce.

$1.54 per pound.

Explanation:

We have been given that An 18 1/2 fluid ounces bottle of water costs $3.79.

To find the unit rate, we will divide total cost by number of oz of water as:

`\text{Unit rate}=\$3.79/ 18(1)/(2)`

Convert mixed fraction into improper fraction:

`18(1)/(2)\Rightarrow(18* 2+1)/(2)=(36+1)/(2)=(37)/(2)`

`\text{Unit rate}=\$3.79/ (37)/(2)`

`\text{Unit rate}=\$3.79* (2)/(37)`

`\text{Unit rate}=(\$3.79* 2)/(37)`

`\text{Unit rate}=(\$7.58)/(37)`

`\text{Unit rate}=\$0.20486`

`\text{Unit rate}\approx \$0.20`

Therefore, the unit rate is $0.20 per ounce.

`\text{Unit rate}=\$5.25/ 3(2)/(5)`

Convert mixed fraction into improper fraction:

`3(2)/(5)\Rightarrow(3* 5+2)/(5)=(15+2)/(5)=(17)/(5)`

`\text{Unit rate}=\$5.25/ (17)/(5)`

`\text{Unit rate}=\$5.25* (5)/(17)`

`\text{Unit rate}=(\$5.25* 5)/(17)`

`\text{Unit rate}=(\$26.25)/(17)`

`\text{Unit rate}=\$1.5441`

`\text{Unit rate}\approx \$1.54`

Therefore, the unit rate is $1.54 per pound.