MATH
posted by SAI .
If 40% of a number is 56, what was the original number?
PLS EXPLAIN
THANK YOU

0.40 x = 56
x = 56/.4 = 560/4 
the best message I can give to you is this: is over of is equal to percent over 100. the number after is is 56 and the percent is 40. so you put 56/x and set that equal to 40/100 which simplifies to 2/5
cross multiply the two: 56 * 5 and 2 * x
write the equation 280 = 2x
Divide: 280 / 2 = 140
Answer: 140
I know this won't help with the specific problem you were having trouble with, but if you ever see a problem with IF, OF AND A PERCENT use this method.
Hope this helps you in the future 
56/x=40/100=
56/x=2/5=
cross multiply
56*5=280
x*2=2x
280/2=140 
just do 56/x=40/100 which can be simplified to 56/x=2/5. 56*5=280 and x*2=2x so 280/2 is 140

56/x=40/100
56/x=2/5.
56*5=280
x*2=2x
280/2 is 140 
140

i dont know
Respond to this Question
Similar Questions

math ALGEBRA
When the digits of twodigits numbers are reversed, the new number is 9 more than the original number, and the sum of the digits of the original number is 11. What is the original number. Can some one please help me here? 
math
The sum of the digits of a twodigit number is 14. If the numbers are reversed, the new number is 18 less than the original number. Find the original number. I know Ana asked this question, but i don't understand how to get the equations. 
maths
The last digti of a sixdigit number it 2. If the 2 is moved to the start of the number, the new sixdigit number is only a third of the original number. Find the original number. 2 A B C D E X 3 = A B C D E 2 NOTE: PLS DON'T CONFUSE … 
Algebra 1
Hello, can someone check my answer the the question below? 
Algebra
How do I express this in algebraic form? And could you please explain how you came up with the expression? 
math
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reach 1 for an answer? 
algebra
The sum of the digits of a twodigit number is eleven. If the digits are reversed, the new number is sixtythree less than the original number. Find the original number. Help? 
algebra
The ratio of the tens digit to the units digit of a two digit number is 2:3. The number that results when the digits of the original number are reversed is 27 more than the original number. Find the original number. 
MATH
The sum of the digits of a two number is 6. The number with the digits interchanged is 3 times the tens digit of the original number. Find the original number. 
One more Question helpppp plz!!
When you divide a number by 1/2, the result is A) half the original number.*** B) twice the original number. C) 50% of the original number. D) 100% of the original number.