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**emmakatecumbo****Member**- Registered: 2017-09-22
- Posts: 35

I have finished the first set of questions. I have no idea how to complete the bottom half. Help

What is the value of c, if...

1. a=3 and b=4

SQRT 25

2. a=7 and b=8

SQRT 113

3. a=13 and b=15

SQRT 394

4. a=7 and b=9

SQRT 130

5. a=10 and b=7

SQRT 149

6. a=9 and b=12

SQRT 225

7. a=6 and b=8

SQRT 100

8. a=6 and b=12

SQRT 180

9. a=12 and b=16

SQRT 400

10. a=2 and b=3

SQRT 13

What is the value of b if...

11. a=6 and c=12

12. a=18 and c=30

13. a=7 and c=SQRT 85

14. a=1 and c=5

15. a=1 and c=SQRT 2

16. a=10 and c=12

17. a=21 and c=35

18. a=5 and c=18

19. a=6 and c=6(SQRT 2)

20. a=11 and c=12

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Hi emmakatecumbo,

You have been using the equation , or .You can rearrange the first equation like this:

Can you use the last equation to find *b* for each question?

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**emmakatecumbo****Member**- Registered: 2017-09-22
- Posts: 35

For the first question would you do

6 divided by 2 - 12 divided by 2

or am i doing this wrong

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**emmakatecumbo****Member**- Registered: 2017-09-22
- Posts: 35

wait I times it by the same amount. would number 11 be 180?

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