Question

Evaluate the expression for x = 5, y = 3, and z=1/4 .

5x−6y+20z4yz

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Answer 1

Answer: 22

Work: 5(5) - 6(3) + 20(1/4) * 4(3) * (.25)
25 - 18 + 5 * 12 * (.25)
7 + 60 * (.25)
7 + 15
22

Answer 2

22

Explanation:

5(5) - 6(3) + 20(1/4)4(3)(1/4)

25 - 18 + 5*12*0.25

25 - 18 + 60*0.25

25 - 18 + 15

7 + 15

22