The value of 7 in 7,283 is 10 times the value of 7 in 2,783
Answer:
Step-by-step explanation:
X=8
Set up proportions would give you: 10/3x+1 = 22/7x-1
With that in mind, cross multiply, which would give you: 10(7x-1) = 22(3x+1).
Turns into: 70x -10 = 66x+22. Then just solve for x
2: 17.5 years. Work; 12 months in one year, 210 months divided by 12 months= 17.5 years.
