Question

NEED HELP

Which expression represents the phrase, "half the sum of 10 and a number"?

a) 1/2(10)+x

b) 1/2(10+x)

c) 1/2+10+x

d) 1/2x+10

Answer 1

b. 1/2(10+x)
B is the correct answer

Answer 2

Let

x--------> the number

we know that

1) "the sum of $10$ and a number"

the expression that represent the phrase is

$(10+x)$

2) "half the sum of $10$ and a number"

so

the expression that represent the complete phrase is

$\frac{1}{2}*(10+x)$

therefore

the answer is the option

b) 1/2(10+x)