Question

Evaluate 3.6 x plus+4.5 y when x equals=3 and y equals=7.

Answer 1

should be 42.3 because, 3.6(3)+4.5(7)=42.3

Answer 2

42.3

Explanation:

the expression we have is:

`3.6x+4.5y`

and we need to evaluate this when

`x=3`

and

`y=7`

to evaluate the expression means that we have to plug in the values for x, and y into the original expression and solve.

So we substitute the values for x and y:

`3.6(3)+4.5(7)`

and solving the multiplications:

`10.8+31.5`

finally, doing the sum we get:

`42.3`