Question

Measurement: Customary Units", then answer each of the following questions. Round answers to the nearest hundredth, if necessary.Q: If 16 cups = 1 gallon, then 1 1/4 gallons = ? cups.

Answer 1

`\text{1 1/4 gallons = 20 cups}`

Step-by-step explanation:
`\begin{gathered} 16\text{ cups = 1 gallon} \\ \text{let the number of cups for 1 1/4 gallons = y} \end{gathered}`
`\begin{gathered} 1\text{ gallon = 16 cups} \\ 1\text{ 1/4 gallons = y} \\ \text{cross multiply:} \\ y(1\text{ gallon) = 16( 1 1/4)} \end{gathered}`
`\begin{gathered} y(1)\text{ = 16(}(5)/(4)) \\ y\text{ = }(80)/(4) \\ y\text{ = 20} \end{gathered}`
`\text{Hence, 1 1/4 gallons = 20 cups}`