Question

HELP FAST!!!!!!   What percent of 51 is 42? If necessary, round to the nearest tenth of a percent.

a)0.8%
b)45.2%
c)121.4%
d)82.4%

Find the percent of decrease from 280 to 210. Round to the nearest tenth of a percent if necessary.

a)133.3%
b)0.3%
c)25%
d)33.3%

Answer 1

42/51 = 14/17
14/17 x 100 = 82.35294
=82.4%

280=100%
210=x% ( cross multiply)

280X=21000
X=75%