Question

Substitute the value 26.7 (or the exact value of 80/3) for x in the first of the original equation (x + y = 40) to find the value of y. Once you have found the value of y using the first of the original equation, you can substitute this value of y and the value of x (26.7) into the second of the original equation (0.75x + 1.5y = 40) to check your work. If the values that you find on the two sides of the equal sign are not equal, then you must recheck your work.

Answer 1

Complete Question

The complete question is shown on the first uploaded image

Answer:

the value of
`y = 13.3`

Step-by-step explanation:

From the question we are told that

The equation is (x + y = 40)

The first value of x is
`x_1 = 26.7`

The second equation is (0.75x + 1.5y = 40)

So substituting
`x_1`

`26.7 + y = 40`

=>
`y = 13.3`

Now substituting y and
`x_1` into second equation

`0.75(26.7) + (1.5* 13.3) = 40`

=>
`40 = 40`

So
`y = 13.3`