Use the Please Exuse My Dear Aunt Sally method. Add what's in the parentheses first. (30) times 3 (90) - 3 = 77 ! Wait actually you are correct! No mistakes here!
You have to make a proportion:
12+x/8=8/x
Then cross multiply to solve for x
Dominic = 2 3/4
Rachel = 1 1/3 x 2 3/4 = 11/3 = 3 2/3 hour
Answer: 3 2/3 hour
Answer:
x=12
Step-by-step explanation:
2x-4=20
+4 +4
2x+24
2x ÷2
24÷2=12
Therefore, x=12
14 weeks is the answer
60+ 30w = 480
-60 -60
30w = 420
Divide by 30 on each side
w = 14