Question

To feed his plants, Logan creates a mixture that requires 3/8 cup of plant food for every gallon of water.If he uses 10 1/2 gallons of water, what is the total amount of plant food he needs?

Answer 1

$\text { 1 gallon of water = } \dfrac{3}{8} \text { cup of plant food}$

$10 \dfrac{1}{2} \text { gallons of water = } \dfrac{3}{8} \times 10\dfrac{1}{2}$

$10 \dfrac{1}{2} \text { gallons of water = } \dfrac{3}{8} \times \dfrac{21}{2}$

$10 \dfrac{1}{2} \text { gallons of water = } 3\dfrac{15}{16} \text { cups of plant food}$