Question

directions: express each rate as a unit rate. round to the nearest cent when necessary. 12. $9.39 for 8 bars of soap 13. 30 oreo cookies for $2.99 14. $6.79 for 300 sandwich bags 15. $1500 for 1,080 square feet of carpet 16. 14 granola bars for $4.99 17. $3,300 for 7 nights

Explanation:

Step1: Recall unit - rate formula

Unit rate = $\frac{\text{Total cost}}{\text{Quantity}}$

Step2: Solve problem 12

For $9.39 for 8 bars of soap, the unit rate is $\frac{9.39}{8}=1.17375\approx1.17$ dollars per bar.

Step3: Solve problem 13

For 30 oreo cookies for $2.99, the unit rate is $\frac{2.99}{30}\approx0.10$ dollars per cookie.

Step4: Solve problem 14

For $6.79 for 300 sandwich bags, the unit rate is $\frac{6.79}{300}\approx0.02$ dollars per bag.

Step5: Solve problem 15

For $1500 for 1080 square - feet of carpet, the unit rate is $\frac{1500}{1080}\approx1.39$ dollars per square foot.

Step6: Solve problem 16

For 14 granola bars for $4.99, the unit rate is $\frac{4.99}{14}\approx0.36$ dollars per bar.

Step7: Solve problem 17

For $3300 for 7 nights, the unit rate is $\frac{3300}{7}\approx471.43$ dollars per night.

Answer:

1. $1.17 per bar
2. $0.10 per cookie
3. $0.02 per bag
4. $1.39 per square foot
5. $0.36 per bar
6. $471.43 per night