using the following prices, calculate the unit price to determine how much it would cost for 7 granola bars…
using the following prices, calculate the unit price to determine how much it would cost for 7 granola bars and 9 bottles of water. $7.14 for 6 granola bars $8.72 for 8 bottles of water a. $18.14 b. $18.63 c. $21.41 d. $31.72 please select the best answer from the choices provided
Answer
Explanation:
Step1: Calculate unit - price of granola bars
The unit - price of granola bars is $\frac{7.14}{6}=1.19$ dollars per bar.
Step2: Calculate cost of 7 granola bars
The cost of 7 granola bars is $7\times1.19 = 8.33$ dollars.
Step3: Calculate unit - price of water bottles
The unit - price of water bottles is $\frac{8.72}{8}=1.09$ dollars per bottle.
Step4: Calculate cost of 9 water bottles
The cost of 9 water bottles is $9\times1.09 = 9.81$ dollars.
Step5: Calculate total cost
The total cost is $8.33 + 9.81=18.14$ dollars.
Answer:
A. $18.14$