Question

Please help me this is the last question of the day.

A student is making $5.10 per hour and get a 0.57raise . what is the % increase?
(round to the nearest tenth of a %)

Answer 1

he got an increase of 11%
5.10/100=0.051
0.051*11=0.56

Answer 2

so 5.10 is 100% and 0.57 is x%
percent means parts out of 100
5.10/100%=0.57/x% since they are equal (exg 2/4=3/6)
5.10/100=0.57/x
multipy both sides by x/0.57 to clear fraciton
(5.1x)/57=1
multiply both sides by 57 to get rid of the denomeator (bottom number

5.1x=57
divde both sides by 5.1
x=11.1765
increase of 11.2%
( an easy way is (0.57/5.1) times 100)