Schoolwork help?!?!?!?

Question

separate 72 into two parts, one of which shall be 1/3rd of the other.

Answer 1

Your answers are 18 and 54

Here is how you do the problem.

Make one of the parts = X

Make the other part = 1/3X

Set up your Equation:

X + 1/3X = 72  (Next multiply everything by 3 to get rid of fraction)

3X + X = 216

4X = 216        (Now divide both by 4)

X = 54         (So one of your numbers is 54)

1/3(54) = 18  (So your other number is 18)

After, you should always check your answer.

18 + 54 = 72  (So that is good)

1/3(54) = 18   (So that is good)

Answer 2

theese are the hardest problems for me but i think its 12