Answer:
1. Solving 
we get x=3
2. Solving 
we get x=-1
Step-by-step explanation:
We need to solve the equations:
1.
Expanding the brackets
Taking LCM on left side we get 12
Add 7/12 on both sides
Adding x/12 on both sides and simplifying
Multiply both sides by 12/3
So, solving we get x=3
2.
Taking LCM and solving:
Cross multiplying
So, solving we get x=-1
Answer:
4/10 = 2/5 = 40%
Step-by-step explanation:
Q,R,S,T = 4
Q R S T U V W X Y Z =10
Answer:71
Step-by-step explanation:
range is the difference between the highest number and the smallest number in a group of data
Highest number=85
Smallest number=14
Range=highest number-smallest number
Range=85-14
Range=71
