Question

0.10x + 0.25(24 - x) = 4.50

Answer 1

x = 10

Explanation:

`0.10x + 0.25(24 - x) = 4.50`

`0.1x + 6 - 0.25x = 4.5`

`- 0.15x + 6 = 4.5`

`- 0.15x = - 1.5`

`x = 10`

Answer 2

10

Explanation:

So you start with

0.10x+0.25(24-x)=4.50

First you do the parenthesis

.25x24 is 6.

So

.10x+6-.25x=4.5

Combine like terms

-.15x+6=4.5

Now isolate the x so you can find what x is

4.5-6

-.15x=-1.5

Then divide

-1.5/-.15

The two negatives make it positive

So 1.5/0.15

Comes to 10.

x=10

The 10 comes like this .15 is 15/100

Simplify that to 3/20

1.5 is 15/10

Simplify that to 3/2

Then divide those

3/2 ÷ 3/20

You cant divide fractions so flip the other side and multiply

3/2 × 20/3

60/6

10

Hope this helps