Question

Which expressions are equivalent to the expression 20 ÷ (4 – 2)? Choose exactly two answers that are correct.

a. 8 12 ÷ 2
b. 14 – 8 ÷ 2
c. 2 • (7 – 4)
d. 16 – 14 ÷ 2 1

Answer 1

Remember to follow PEMDAS

20/ (4-2)
20/ (2)
10

Now we have to check each answer choice and see which 2 answer choices gives us 10.

a.
8(12) / 2
96/2
48

So A is wrong

b.
14 - 8 /2
14 -4
10

B is correct.

c.
2 (7 - 4)
2(3)
6

C is wrong

d.
16 - 14 /2 + 1
16 - 7 + 1
9 + 1
10

D is correct.

So B and D are the correct answers.