Do you know what 25% is? It is one fourth...one quarter of something. How many quarters make a dollar? Four. If 70 is a quarter what does four of them equal?
c'mon, do your own homework next time.
You can answer any percent question using the "is over of" method. This is a proportion - an equation where one ratio equals a second ratio. One of the proportions will always be the percent over 100. In this case that is 25/100.
The second proportion will be the number associated with "is" in the question (in this case, 70) over the number that follows the word "of" in the question (in this case, an unknown so we represent it with a variable); 70/x
So the proportion is 25/100 = 70/x
To solve for the unknown (in whatever position it happend to be in for a specific problem) you cross multiply, to obtain: 25x = 100*70.
Solving for x gives x = 7000/25 = 280. So 70 is 25 percent of 280.
This is a perfect example of what I was discussing in my answer to the question "Applications of algebra in real life" http://hubpages.com/question/35620/appl … real-life.
You may know how to answer the question "What is 25% of 100?" without using algebra; or maybe even "What is 25% of 280?" But when the question is turned around as this one was, you're at a loss as to how to find the answer. Well, as I always say (not really, but it sounds good ), Algebra to the rescue!
Is this a serious question? Most probably not. Patterson has 0 hubs (as of 2010-02-05) since joining two weeks ago. The question is such an elementary algebra problem, I am not even going to address it, even though I was tempted at first. Jeffrey Neal and nadp are both correct, though nadp's response is rather convoluted.
Let's assume that the number is X.
25% of X = 70
or, X * 25/100 = 70
or, X=70 * 100/25
or,X = 280.
For more help of your math problems visit to www.excellup.com
just simple quest,,
70 is 25% from X which X is 100%..
so X is 100%/25% * 70..
ta daaaa 280
280! 25% is equivalent to 1/4 of the whole therefore 70 X 4 = 280!
by creid8 years ago
what percent of 40 is 1/4?
by anothermathgeek8 years ago
I was surprised to hear from a friend of mine who's a born-again Christian that Jesus was probably born in spring time. She told me that its commonly agreed by Christian scholars.She told me that December 25 was...
by captain planet7 years ago
What If you were superman?
by IRISHHUBPAGES7 years ago
A question for a genius like you.If 2+3=10 and 7+2=63 and 6+5=66 and 8+4=96 then 9+7=?
by Jackie Lynnley18 months ago
Why is that I wonder? I mean isn't it the Christians that are being persecuted and aren't they the ones we should be giving refuge to? Why are the numbers so very low compared to Muslim refugees? You would think the...
by sana.kapoor6 years ago
Find The Mising Number.1 2 5 26 ?Find The Mising Number.1 2 5 26 ?Solution Time 10...
Copyright © 2018 HubPages Inc. and respective owners.
Other product and company names shown may be trademarks of their respective owners.
HubPages® is a registered Service Mark of HubPages, Inc.
HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.