Answer:
27
Step-by-step explanation:
First you need to find x.
It is shown that DE=EF, so we can use this.
5x-3=3x+7
5x=3x+10
2x=10
x=5
Then, you plug in the value of the variable and solve.
6(5)-3
30-3
27 = DF
Let sum of 3 numbers be x.
Average of 3 numbers and 8 =

25 =

100 = x +8
x= 92.
The sum of 3 numbers is 92.
Answer:
5 * 2 is 10 + 5 and then 15 * 2 + 15 45 * 2 + 45
Step-by-step explanation:
times it by to add that number
Answer: 50%
Step-by-step explanation:
The answer is false. I hope this helps love! :)