Answer:
Step-by-step explanation:
x = 11/3
x - 2/3 = 3
³⁾x = ³⁾3 + 2/3
3x = 9 + 2
3x = 11
55
Answer-
Answer: d. He multiplied when he was supposed to divide
He just multiplied across when he was supposed to divide (or cross multiply) to find the unit rate :)