Answer:
25 meals
Step-by-step explanation:
If Rita feeds her dog 2/5 pounds of dog food for each meal, this means;
2/5 pounds = 1 meal
To get the number of meals she will feed if she buys 10 pounds, we will say;
10 pounds = x meals
Divide both equations to get x;
(2/5)/10 = 1/x
Cross multiply;
2/5 x = 10 * 1
2x/5 = 10
2x = 50
x = 50/2
x = 25
Hence the 10pounds food will last 25 meals
