Homework Help: math

Posted by jocelyn on Sunday, March 18, 2012 at 7:24pm.

janice scored 85% on the last test. she answered 34 questions correctly. how many questions were on the test?

math - Ms. Sue, Sunday, March 18, 2012 at 7:30pm
0.85x = 34
math - jocelyn, Sunday, March 18, 2012 at 7:44pm
thank you. can you please check this for me:
henri rici paid $5000 for a car. after one year, its value had decreased by $1500. by what percent had the car depreciated in value? is it 5000x=1500?
math - Ms. Sue, Sunday, March 18, 2012 at 7:51pm
Be sure to multiply your decimal answer by 100 to find the percent.
math - jocelyn, Sunday, March 18, 2012 at 7:53pm
ok, 30% right?
math - Ms. Sue, Sunday, March 18, 2012 at 7:55pm
Yes. 30% is right.

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