Question

Tabitha was shooting free throws in gym class. She completed 9 of the shots, which was half of 3 more than Joan completed.



What is the number of free throws, n, that Joan completed?
a. 12
b. 21
c. 6
d. 15

Answer 1

Solve for n

\(\dfrac{1}{2}(n + 3) = 9\)

Distribute 1/2 into the parenthesis:

\(\dfrac{1}{2}n + 1.5 = 9\)

Subtract 1.5 to both sides:

\(\dfrac{1}{2}n = 7.5\)

Divide 1/2 to both sides.

Can you divide 7.5 / 0.5?

Answer 2

Thank you. :)

Answer 3

No problem!

Answer 4

15?