Some easy homework help please?

Question

My sis needs some help and i forgot how to do this.

Write your answers in simplest form ALL I NEED IS THE STEPS HOW TO DO THESE PROBLEMS. STEP BY STEP PLEASE THANKS.

17% of 200=

25% of 90=

Answer 1

all u do is add a decimal in front of the percentage number and then use a calculator to times the two together.

Answer 2

Just whip out a calculator and do this:

1) Find the percent in decimals.

17% = 17/100 = 0.17

25% = 25/100 = 0.25

2) Multiply the percentage by the number it is out of.

0.17*200 = 34

0.25*90 = 22.5

Those are your answers.

Answer 3

Remember percentages are out of a hundred, so 17% = 17/100 = 0.17. Simply multiply:

17% of 200 = 0.17*200 = 34

25% of 90 = 0.25*90 = 22.5

Another way to do this would be by using a proportion:

is(the part)/of(the whole) = %/100

x/200 = 17/100 (cross multiply)

3,400 = 100x

34 = x

And so on...