What percent of 50 is 80?

Question

I only dont fully understand how to set this problem up or solve it. There  can be 50 is what percent of 80 50 is what percent of 80....

 

I just dont understand, please help me. Explain all I need to know, if you can, not just the problem I requested and that would be very helpful.

Answer 1

As a big idea: think about going to the mall to purchase a sweater priced $30. You pay $15 for the sweater. 

 

I.e you are getting half off the price of the sweater.

 

what percentage of 30 is 15. i.e x% x 30 = 15. 

x/100 x 30 = 15. 

30x/100 = 15 (multiply numerators 30 X x)

30x = 100 x 15

30x = 1500 

30x/30= 1500/30 (divide 30 on both sides)

x = 50

 

You are getting the sweater for 50% off

 

 

x/100 X 50 = 80 ;  50x/100 = 80 ; 50x = 100 X 80 ; 50x/50 = 8000/50 ; x = 160

 

 

Answer 2

This might help...

percentage=rate*base where percentage is the "is" number, base is the "of" number and rate is the "%"

what percent of 50 is 80 ?

you are looking for the rate, the percent (%)

80 is the "is" number and 50 is the "of" number

set it up using the formula...

80=rate*50

80/50=rate

seeing that you want a percent, which means "hundredths"...

80/50=(80*2)/(50*2)=160/100=160%

80 is 160% of 50

check: 160%*50=1.6*50=80

Answer 3

"What percent" can look like this:  ?/100

 

And since 50 is the total, of which 80 is a part, it looks like 80/50.

 

So you can use a ratio: 80 is to 50 as ? is to 100.  So your ? would be 160

 

You can also cross multiply and get 50? = 8000. Divide by 50 and get ? = 160.

 

So 80 = 160% of 50.  Awkward but true!

 

Matt in NY

Answer 4

Each number is 100% of itself. When it is asked, what % of a smaller number is a bigger number, obviously % is greater than 100% and vice versa.

 

Solution:

x % of 50 = 80

or, x = 80 * 100/ 50 = 160