2x + 3/12 = 2x/8
2x - 2x/8 = -3/12
2x - x/4 = -3/12; 2 - 1/4 = 1 3/4 = 7/4
7x/4 = -3/12
7x = -3/12 * 4
7x = -1
x = -1/7
The answer to 5 is 20
the answer to 3 is 12
the answer to 4 is 16
Answer:
See explanation
Step-by-step explanation:
Todd has a new spool of wire. He needs 48 pieces of wire, each 22 feet long. He estimates that he needs 50×20=1000 feet, and he concludes that 1 spool with 1000 feet will be enough.
Actually, Todd is incorrect because in his estimation he took 2 more pieces than he needed of the length 2 feet shorter that he needed. The total length may appear smaller. Check this:
So, Todd shouldn't use multiplication 50×20=1000 to estimate the total amount of wire he needs.
The correct answer is x=5. Therefore, the value of x is 5.