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Sagot :
so percent means parts out of 100 so
70%=70/100=7/10
56=7/10 of x or
56=7/10x
multiply both sides by 10/7 to clear fraction (7/10 times 10/7=70/70=1)
56 times 10/7=x
560/7=x
80=x
the number is 80
70%=70/100=7/10
56=7/10 of x or
56=7/10x
multiply both sides by 10/7 to clear fraction (7/10 times 10/7=70/70=1)
56 times 10/7=x
560/7=x
80=x
the number is 80
to solve this problem, you can use the equation 56=70/100*x
and you have to solve for x
first simplify 70/100 by diving 10 to both denominator and numerator.
Which become 7/10
So the equation is now 56=7/10*x
Now, to solve for x, you have to move the variable (x) on one side and numbers at the other, equal sign being the fence.
so, with the equation 56=7/10*x, you should multiply 10/7 to both sides to make 7/10 to 1. Which becomes
80=x
Therefore, 56 is 70 percent of 80.
In case you didn't understand, sorry for my bad english. Here is my work
56 is 70 percent of what number?----> 56=70/100 of x
of=*(multiply)
56=70/100*x
56=7x/10
56*10/7=7x/10*10/7
80=x
tada!~
and you have to solve for x
first simplify 70/100 by diving 10 to both denominator and numerator.
Which become 7/10
So the equation is now 56=7/10*x
Now, to solve for x, you have to move the variable (x) on one side and numbers at the other, equal sign being the fence.
so, with the equation 56=7/10*x, you should multiply 10/7 to both sides to make 7/10 to 1. Which becomes
80=x
Therefore, 56 is 70 percent of 80.
In case you didn't understand, sorry for my bad english. Here is my work
56 is 70 percent of what number?----> 56=70/100 of x
of=*(multiply)
56=70/100*x
56=7x/10
56*10/7=7x/10*10/7
80=x
tada!~
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