Respuesta :
Torres family: The sprinkler has a water output rate of 35 L/hour
Choi family: The sprinkler has a water output rate of 15 L/hour
Both families used the sprinklers for "S" hours and used a total of 1625L of water.
The total water output is equal to the sum of the water output of each family.
- To determine the total water output of the Torres family after S hours, you have to multiply the output rate by the number of hours S
[tex]Torres\text{ water output: }35S[/tex]- The total water output of the Choi family after S hours is equal to the output rate multiplied by the number of hours S.
[tex]Choi\text{ water output: 15S}[/tex]- If you add both, you will determine an expression that can be used to determine the amount of time S:
[tex]35S+15S=1625[/tex]First, add both S-terms
[tex]\begin{gathered} 35S+15S=1625 \\ 50S=1625 \end{gathered}[/tex]Divide both sides by 50
[tex]\begin{gathered} \frac{50S}{50}=\frac{1625}{50} \\ S=32.5 \end{gathered}[/tex]The sprinklers were used for 32.5 hours.
