Question

Mary spent $58 and spent twice as much as John. If John paid $4 pereraser and a one time shipping fee of $5, which equation would representthis situation?

Answer 1

Information we have:

Mary spent $58, and this must be twice as much as what John spent.

John paid $4 per eraser, this will be represented by 4x, and since he also paid a shipping fee of $5, his total is:

4x+5

Now we use the information we had: Mary spent twice as much as John.

And twice as much as John is:

2(4x + 5)

And finally, this must be equal to what Mary spent which is $58:

2(4x + 5)=58