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Tanzania [10]
3 years ago
15

Geometry, help with the last 3 questions!

Mathematics
2 answers:
Temka [501]3 years ago
8 0

Answer:

5) 7

6) 14

7) 31

Step-by-step explanation:

5) 5a-4=2a+17

3a=21

a=7

6) 2(7)=14

7) 2(7)+17=31

matrenka [14]3 years ago
3 0

4. C

5. 2a + 17 = 5a - 4

- 3a = - 21

a = 7

6. XY = 2(7) = 14

7. XZ = 5(7) - 4

= 31

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