Question

Posted by Ted on Wednesday, January 30, 2013 at 5:05pm.


susan has $450. she uses 30% of her money to but a dress and 20% of the remainder to buy a pair of shoes. how much money does she have left?

i got $225.00 left. am i right
math - Ms. Sue, Wednesday, January 30, 2013 at 5:10pm
I got a different answer.

450 * 0.3 = 135

450 - 135 = 315

315 * 0.8 = 252

dont you mean 315 x 0.2?

Answer 1

We could do it this way.

315 * 0.2 = 63

315 - 63 = 252

I just saved a step in my original problem.

In other words, she had 80 percent of the money left after she spent part of it.

Answer 2

ok i see it thanks

Answer 3

You're welcome.