Question

What is the value of the expression below?

2/5 + ( −1/3)

(2 points)
Responses

−115
negative 1 over 15

−1115
negative 11 over 15

115
1 over 15

1115

What is the value of the expression below?


10 + 3|1 − 7|

(2 points)
Responses

28
28

- 78
- 78

- 8
- 8

78

Answer 1

1) 2/5 + (−1/3) = 2/5 − 1/3 = (6−5)/15 = 1/15.

2) 10 + 3|1 − 7| = 10 + 3·6 = 10 + 18 = 28.