Question

2

Eight more than half a number is
thirteen. What is the number?
А
2.5
B
18
с
10.5
D
10

Answer 1

d) 10

Explanation:

x ÷
`(1)/(2)` + 8 = 13

substitute 10 for x:

⇒ 10 ÷
`(1)/(2)` + 8 = 13

solve:

1) divide 10 by
`(1)/(2)`

⇒ 10 ÷
`(1)/(2)` = 5

2) add 8 to 5

⇒ 8 + 5 = 13