Question

Evaluate the expression when x = 4.5 and y = 5.2.
2x + 5y


Answer 1

35

Steps

2x + 5y

x = 4.5

y = 5.2

a. Substitute

2(4.5) + 5(5.2)

b. Multiply

9 + 26

c. Add

35

Therefore, the answer is 35.

Answer 2

35

Explanation:

2x = 2 times 4.5

= 9

5y = 5 times 5.2

= 26

2x + 5y is 9 + 26

= 35