Question

Which steps could be used to solve this story problem?

Kathie ran for twice as long as she walked. She walked for 10 minutes more than she rode her bike. She walked for 30 minutes.

How many minutes did Kathie exercise altogether?

Choose all answers that are correct.


Multiply 30 × 2.
Add that product to 30.
Divide the sum by 10.

Divide 30 by 2. Then add the quotient to 10.

Multiply 30 × 2.
Subtract 10 from 30.
Add the product and the difference.
Add that sum to 30.

Add 30 + 30.
Subtract 10 from 30.
Add the sum and the difference.
Add that sum to 30.

Answer 1

Multiply 30 × 2.

Subtract 10 from 30.

Add the product and the difference.

Add that sum to 30.

Add 30 + 30.

Subtract 10 from 30.

Add the sum and the difference.

Add that sum to 30

Explanation: