Multiply the price times the number of boxes
Call b the amount of babysitting hours and 5 the amount of gardening hours.
10b+5g=80
b+g=12
Subtract 5 times the second equation from the first to get:
5b=20
Thus, b=4. g=12-4, or 8. Therefore, Sarah spends 4 hours babysitting and the rest gardening.
1. given
2. transitive prop of equality
3. subtraction property of equality<span />
If you divide those two you get <span>0.0024691358 hope that helped</span>
