Peter earned a wage increase of 15% . If he was previously making $9 per hour, how much more is Peter making per hour now?

Question

mathlegend · Answer

@toby_the_epic do you still need assistance?

espex · Answer

If Peter is getting a wage increase, you can assume that he will be getting 100% of his previous wage, plus the increase of 15%. There are two ways you can approach this, one is to say that you have a combination problem: $\small{15\%~ in~ decimal~ is ~0.15}$
wage + (0.15*wage) = new_wage
OR
you could look at this as a multiplication problem:$\small{115\%~in~decimal~is~1.15}$
wage * 1.15 = new_wage

Both give you the same answer.