Question

Sonia is sorting her rock collection into jars that each hold five rocks. She fills a total of eight jars. Let r be the total number of rocks Sonia has. Write an equation involving r and solve it for the total number of rocks Sonia has.

Answer 1

The total number of rocks Sonia has is found by multiplying the number of rocks per jar by the number of jars, resulting in 40 rocks.

Step-by-step explanation:

The question asks us to write an equation that represents the total number of rocks Sonia has, given that she fills eight jars with rocks and each jar holds five rocks.

Let r be the total number of rocks she has. We can express this situation with the equation r = 5 × 8.

Solving this equation, we multiply 5 by 8 to get r = 40, which means Sonia has a total of 40 rocks in her collection.