Answer:
a. 4.5 grams per cup
b. 3.2 ounces per week
c. 19.2 grams per cubic centimeters
d. $3.29 per gallon
Explanation:
The unit rate is simply a ratio comparing 2 given quantities, whereby the denominator is 1.
The unit rate of the above given problems can be determined as shown below:
a. 18 grams of salt per 4 cups, to find the unit rate, calculate how many grams of salt you'd get in 1 cup by dividing 18 by 4
![(18)/(4) = 4.5](https://img.qammunity.org/2021/formulas/mathematics/college/7yb0idj7a6e7j0paze2efjcklw9i9saib9.png)
Unit rate = 4.5 grams per cup
b. 19.2 ounces is gained by the baby in 6 weeks.
Unit rate is the amount of ounces gained in 1 week
Unit rate =
![(19.2)/(6) = 3.2](https://img.qammunity.org/2021/formulas/mathematics/college/g5hdwg2ujv2ta0gkwgkbc2stqbik4f4o00.png)
Unit rate = 3.2 ounces per week
c. Unit rate =
![(76.8)/(4) = 19.2](https://img.qammunity.org/2021/formulas/mathematics/college/s7uvan2uxzsoblghny4uftylaeprhut0mc.png)
Unit rate = 19.2 grams per cubic centimeters
d. Unit rate =
![(23.03)/(7) = 3.23](https://img.qammunity.org/2021/formulas/mathematics/college/nmb3j27duq76m7cljm0035r8az84fej3hc.png)
Unit rate = $3.29 per gallon