Question

Reid jarred 4 liters of jam after 2 days. How many days does Reid need to spend making jamif he wants to jar 18 liters of jam in all?

Answer 1

4 liters are proportional to 2 days.

To find how many days are proportional to 18 liters, we can use the next proportion:

`\frac{4\text{ liters}}{18\text{ liters}}=\frac{2\text{ days}}{x\text{ days}}`

Solving for x:

`\begin{gathered} 4\cdot x=2\cdot18 \\ x=(36)/(4) \\ x=9 \end{gathered}`

Reid needs 9 days to jar 18 liters of jam.