To find the equation that represents Maria's charges for babysitting, we start with her fee structure. She charges a base fee of $10 and $15 for each hour of babysitting.
We can express the total charge, C, using the equation:
\[ C = 10 + 15h \]
where \( h \) is the number of hours babysat.
Since we want to find the number of hours for a total charge of $160, we can set \( C \) to 160 and write the equation:
\[ 160 = 10 + 15h \]
This equation can be used to find \( h \), the number of hours of babysitting that Maria will charge $160.