Answer:
x=2
Step-by-step explanation:
Answer:
The answer to your question is 38 packs
Step-by-step explanation:
Data
570 crayons
packs of 15 crayons each
total number of crayons = ?
Process
To solve this problem just divide the number of crayons by the number of crayons in each pack.
38
15 570
-45
120
- 120
0
Conclusion
Nancy bought 38 packs to have 570 crayons.
Answer:
Step-by-step explanation:
Question 1:
First, write the equation out:
4(x+3)=7x-3
solve for x:
4x+12=7x-3
15=3x
x=5
Question 2:
Do the same on the second question:
30-x=3x-6
36=4x
x=9
Since E is the midpoint, DE and EF are the same length.
Set the equation DE and EF equal to each other and solve for x.
2x + 4 = 3x - 1
x = 5
Then plug in 5 to find the length.
DE = 2(5) + 4 = 14
EF = 3(5) - 1 = 14
DF = DE + EF = 28
