## anonymous one year ago The equation 9(u – 2) + 1.5u = 8.25 models the total miles Michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?

1. mattyboyy

Looks like distribution but im not sure? @iambatman

2. mattyboyy

cant be lol nvm

3. anonymous

A: u = 0.25 B: u = 0.75 C: u = 1.1 D: u = 2.5

4. mattyboyy

@Aureyliant is it?

5. anonymous

Here are some options to help you out... And I'm pretty sure.

6. mattyboyy

Okay well if it is... hold on I can do it but...

7. anonymous

Okay I appreciate it...

8. mattyboyy

|dw:1435012772189:dw| drawing sucks lol but lets do it

9. mattyboyy

|dw:1435012852710:dw| Distribute the 9 first

10. anonymous

Okay I'm doing this on paper... next?

11. mattyboyy

what did you get? lol

12. mattyboyy

anyways lmao

13. anonymous

Actually I think I just solved the whole thing lol, I came up with u equals 0.25?

14. mattyboyy

|dw:1435013034777:dw| that what you should have. You just multiple the 9 across the perenthesis

15. mattyboyy

lol lets see idk yet either

16. mattyboyy

add common numbers so 9u + 1.5u = 10.5u

17. anonymous

And now solve for u?

18. mattyboyy

actual subtract 1.5u from 9u

19. mattyboyy

so it would be 7.5u

20. mattyboyy

so the equation now should be 7.5u +18 = 8.25

21. mattyboyy

now subtract 18 from 8.25

22. anonymous

Okay I have that so far.. Okay

23. anonymous

9.75

24. mattyboyy

actual I think we messed up

25. mattyboyy

we need to add 1.5 to 9 I believe so that gives us 10.5

26. anonymous

Yeah because it was a plus sign right?

27. anonymous

10.5

28. mattyboyy

I'm doing it wrong...

29. mattyboyy

@robtobey

30. anonymous

$9 (u-2)+1.5 u=8.25\text{ },\text{ }u=2.5$

31. anonymous

Alright, that does the job lol. Thanks very much robtobey, appreciate it.

32. anonymous