Question

Write and solve an equation. If 14 empty water bottles weigh 4.5 pounds, what will 9 empty water bottles weigh?

Answer 1

Weight of 9 empty water bottles is 2.8926 pounds

Solution:

Given that,

14 empty water bottles weigh 4.5 pounds

Find the weight of 1 empty bottle

$\text{weight of 1 empty bottle } = \frac{4.5}{14}\\\\\text{weight of 1 empty bottle } = 0.3214\ pounds$

what will 9 empty water bottles weigh?

Weight of 9 empty bottles = 9 x weight of 1 empty bottle

Weight of 9 empty bottles = 9 x 0.3214

Weight of 9 empty bottles = 2.8926

Thus weight of 9 empty water bottles is 2.8926 pounds