SOLUTION: four less than two fifths a num.is 24.find the number.

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Question 228639: four less than two fifths a num.is 24.find the number.
Answer by JenniferTutors(83) About Me  (Show Source):
You can put this solution on YOUR website!
In reading this problem out, Four less than two fifths a number is 24.
You can determine that, four less would look like this: -4
Four less than 2/5: %282%2F5%29-%284%29
Four less than 2/5 a number: %282%2F5%29X-%284%29
Is 24 means equals 24.
%282%2F5%29X-%284%29=24
Now you can solve the problem further, by first adding the four to the other side of the equation.
%282%2F5%29X=24%2B4
%282%2F5%29X=28
Now, to get X by itself, you would multiply the reciprocal of 2/5 to both sides of the equation.
%285%2F2%29%282%2F5%29X=%2828%29%285%2F2%29
Next, you have X by itself and when you multiply 28 by 5 you get 140 which divided by 2 equals 70.
%28X%29=140%2F2
%28X%29=70