< Back to Content III
1.13 Unit Test: Expressions and Problem Solving
Which expression represents the phrase, "one third the sum of 12 and a number"?
|(12) + 2
$(12 + x)
X + 12
.
} + 12 + x

answer: idk

step-by-step explanation:

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2