Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

percentage help?

OpenStudy (anonymous):

http://prntscr.com/3uaag1

rishavraj (rishavraj):

solve the equation x*4% = 20

OpenStudy (anonymous):

i'm not exactly sure, i'm not the best at math tbh

rishavraj (rishavraj):

@zylaai whats ur choice..

OpenStudy (skullpatrol):

20 is 4% of what means 20/b = 4%

OpenStudy (anonymous):

i'm so confused, can you help me understand it?

OpenStudy (anonymous):

i'm not too familiar with this subject at all

OpenStudy (skullpatrol):

Percent means "hundredths" or "divided by 100." @zylaai

rishavraj (rishavraj):

@zylaai think like it is 4% of x = 20..and u have find x

OpenStudy (anonymous):

oh alright, i see.

OpenStudy (skullpatrol):

So if I say x% I can write this as x/100 this translates to what percent.

OpenStudy (anonymous):

i'm not quite sure, i'm sorry. im really bad at this.

OpenStudy (skullpatrol):

What does percent mean to you @zylaai ?

OpenStudy (anonymous):

percent means that it's part of every hundredth, i believe.

OpenStudy (anonymous):

20 'IS' 4% of what is interpreted as \[20 = 4percent \times x\] where per cent meaning per 100

OpenStudy (skullpatrol):

Correct, and how would you write it?

OpenStudy (anonymous):

oh okay, so basically 20 is equivalent to 4%, @Johnbc

OpenStudy (anonymous):

20 is equal to a relationship of 4$ times a number

OpenStudy (skullpatrol):

Not "equivalent"

OpenStudy (anonymous):

to find that number you must convert your percentage and then solve for x using algebra

OpenStudy (anonymous):

yes that's where i get confused.

OpenStudy (skullpatrol):

This equation DEFINES a percent:$$\Huge \frac{x}{100}=\frac{a}{b}$$

OpenStudy (skullpatrol):

20 is 4% of what means 20/b = 4%

OpenStudy (anonymous):

convert 4% into its numerical form using what you know 4 percent is 4 per 100 and where per stands for a ratio or rate

OpenStudy (anonymous):

is the answer 200?

OpenStudy (skullpatrol):

nope

OpenStudy (skullpatrol):

$$\Huge x \%=\frac{x}{100}$$

OpenStudy (anonymous):

No the answer is not 200, try to use the relationship again

OpenStudy (anonymous):

it wouldn't be 50, would it? i'm guessing 500, but that seems a bit steep.

OpenStudy (skullpatrol):

why steep?

OpenStudy (anonymous):

well considering that 25 is 25% of 100, i would think that 500 would be a bit of a large number for just 20..idk

OpenStudy (skullpatrol):

20 is 4% of what $$\Huge \frac{4}{100}=\frac{20}{b}$$

OpenStudy (anonymous):

500? uhhm

OpenStudy (skullpatrol):

Yes

OpenStudy (anonymous):

Thanks!!!!

OpenStudy (skullpatrol):

Thanks for trying to learn :-)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!