If x and a equals 59, what is the value of x if a=30%?

2 Answers
Nov 7, 2017

x=41.3

Explanation:

Assuming that a is 30% of 59, we would first find out what a is by finding 30% of 59, or doing 59*0.3.
59*0.3=17.7
Now we can just do 59-17.7 to find x.
59-17.7=41.3
x=41.3

You can also find x by multiplying 59 by 0.7, because you know that a is 30% of 59 so x must be the other 70%.

Nov 7, 2017

As written x=58 7/10
but the question may be interpreted as meaning something different from what was actually written.

Explanation:

If the relation was meant to be x+a=59 with a=30% (as written)
then a=30/100=3/10

x+3/10=59

rarr x+3/10color(blue)(-3/10)=59color(blue)(-3/10)

rarr x=58 7/10

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If the relation was meant to be x+a=59% (that is the 59 was intended to be a percentage)

x+30%=59%

rarr x+30%color(blue)(-30%)=59%color(blue)(-30%)

rarr x=29%

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Shadow (whose answer currently appears below) seems to have interpreted the relation as something like: x xx a =59

x xx 30% =59

rarrx xx 3/10 =59

rarrx xx 3/10 color(blue)(xx 10/3)=59color(blue)(xx 10/3)

rarrx=590/3=196 2/3