To find out how many loads of laundry Heather can complete with the carton of laundry detergent, we need to divide the total ounces in the carton (195 ounces) by the amount used per load (2.5 ounces):
\[ \text{Number of loads} = \frac{\text{Total ounces}}{\text{Ounces per load}} = \frac{195}{2.5} \]
Now, let's perform the division:
\[ \frac{195}{2.5} = 195 \div 2.5 \]
To make the division easier, you can multiply both the numerator and the denominator by 10 to eliminate the decimal:
\[ \frac{195 \times 10}{2.5 \times 10} = \frac{1950}{25} \]
Now divide 1950 by 25:
\[ 1950 \div 25 = 78 \]
So, Heather can complete 78 loads of laundry with one carton of detergent.
The correct response is 78 loads.
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