Since E is the midpoint of DF, DE and EF are two halves of DF. First, let's write down what we know.
DE = 3x + 4
EF = 5x - 2
DE = EF
DE + EF = DF
Now, let's plug our values for DE and EF into our first expression.
3x + 4 = 5x -2
Add 2 to both sides and subtract 3x from both sides.
6 = 2x
Divide both sides by 2
3 = x
Let's plug 3 in for x into DE.
DE = 3x + 4 = 3(3) + 4 = 9 + 4 = 13
DE = EF = 13
We can plug 13 in for DE and EF to get DF
DF = DE + EF = 13 + 13 = 26
Answer:
99.5
Step-by-step explanation:
First quartile is the second largest value in these five
Answer: 9:4
Step-by-step explanation:
Number of rock songs = 10
Number of rap songs = 6
Number of pop songs = 2
Total number of songs = 18
The ratio of all songs to songs that are not rock will be:
= 18 : (6 + 2)
= 18 : 8
= 18/8 = 9/4
= 9:4
The answer is 9:4
Answer:
WANDA
Step-by-step explanation:
Answer:
The answer is 3x+5
Step-by-step explanation:
3x²+ 14x+15÷x+3
= (3x+5)(x+3)÷x+3
cancel the x+3
=3x+5