Question

Corky the dog eats 5 2/3 cups of dry food each day. How many cups of dry food does Corky eat in 3 days?

Answer 1

$5\frac{2}{3}\ cups\ in\ 1\ day\\ x\ cups\ in\ 3\ days\\\\ proportion:\\ 5\frac{2}{3}-1\\x-3\\\\ cross\ multiplication\\ 5\frac{2}{3}*3=x\\\\ x=\frac{17}{3}*3\\\\ x=17\\\\ Corky\ eats\ 17\ cups\ in\ 3\ days.$