Question

Evaluate each expression for r= -3 and s= 5. 3r/ s-2

Answer 1

The expression 3r/s-2 evaluates to -3.8 when r= -3 and s= 5. The steps include substitution, division, and subtraction.

Step-by-step explanation:

To evaluate the expression 3r/s-2 for r= -3 and s= 5, we start by substituting the given values into the expression:

3(-3) / 5 - 2 = -9 / 5 - 2

We first perform the division, and then the subtraction:

-9 / 5 = -1.8

Finally, we subtract 2:

-1.8 - 2 = -3.8

Therefore, the value of the expression when r= -3 and s= 5 is -3.8.

It's important to simplify the algebra and then check the answer to ensure it is reasonable, which we have done in this case.

Answer 2

-3

Step-by-step explanation:

replace the letters with the number, 3(-3) / (5)-2

evaluate, -9 / 3

divide, -3