232k views
4 votes
If DM = 45, what is the value of r?

r +3
4r - 28

A 12
B 13
C. 14
D. 15

User Arinze
by
4.6k points

2 Answers

5 votes

Answer: 14

Explanation:

Got it right in a test ‍

User StvnW
by
5.9k points
3 votes

Answer:

-7 i hope this right

Explanation:

Find the Greatest Common Factor (GCF).

GCF = 44

2 Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

4(\frac{4r}{4}-\frac{28}{4})4(

​4

​4r

​​ −

​4

​28

​​ )

3 Simplify each term in parentheses.

4(r-7)4(r−7)

User VickTree
by
5.0k points