If 40% of a number is 56, what was the original number?
PLS EXPLAIN
THANK YOU
140
0.40 x = 56
x = 56/.4 = 560/4
140
140 no stuff sherlock
To find the original number, you can use the concept of finding a percentage of a number. In this case, you are given that 40% of a number is equal to 56.
Step 1: Convert the percentage to a decimal by dividing it by 100.
40% = 40/100 = 0.4
Step 2: Set up a proportion using the percentage and the unknown number.
0.4 (percentage) = 56 (unknown number)
Step 3: Solve the proportion by isolating the unknown number.
Multiply both sides of the equation by the reciprocal of 0.4, which is 2.5:
0.4 * 2.5 = 56 * 2.5
1 = 140
Step 4: Calculate the unknown number by dividing both sides of the equation by 1.
Original number = 140/1 = 140
Therefore, the original number is 140.
It's over 9999
56/x=40/100=
56/x=2/5=
cross multiply
56*5=280
x*2=2x
280/2=140
56/x=40/100
56/x=2/5.
56*5=280
x*2=2x
280/2 is 140
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