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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?

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  1. mattyboyy
    • one year ago
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    Looks like distribution but im not sure? @iambatman

  2. mattyboyy
    • one year ago
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    cant be lol nvm

  3. anonymous
    • one year ago
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    A: u = 0.25 B: u = 0.75 C: u = 1.1 D: u = 2.5

  4. mattyboyy
    • one year ago
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    @Aureyliant is it?

  5. anonymous
    • one year ago
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    Here are some options to help you out... And I'm pretty sure.

  6. mattyboyy
    • one year ago
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    Okay well if it is... hold on I can do it but...

  7. anonymous
    • one year ago
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    Okay I appreciate it...

  8. mattyboyy
    • one year ago
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    |dw:1435012772189:dw| drawing sucks lol but lets do it

  9. mattyboyy
    • one year ago
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    |dw:1435012852710:dw| Distribute the 9 first

  10. anonymous
    • one year ago
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    Okay I'm doing this on paper... next?

  11. mattyboyy
    • one year ago
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    what did you get? lol

  12. mattyboyy
    • one year ago
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    anyways lmao

  13. anonymous
    • one year ago
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    Actually I think I just solved the whole thing lol, I came up with u equals 0.25?

  14. mattyboyy
    • one year ago
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    |dw:1435013034777:dw| that what you should have. You just multiple the 9 across the perenthesis

  15. mattyboyy
    • one year ago
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    lol lets see idk yet either

  16. mattyboyy
    • one year ago
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    add common numbers so 9u + 1.5u = 10.5u

  17. anonymous
    • one year ago
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    And now solve for u?

  18. mattyboyy
    • one year ago
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    actual subtract 1.5u from 9u

  19. mattyboyy
    • one year ago
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    so it would be 7.5u

  20. mattyboyy
    • one year ago
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    so the equation now should be 7.5u +18 = 8.25

  21. mattyboyy
    • one year ago
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    now subtract 18 from 8.25

  22. anonymous
    • one year ago
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    Okay I have that so far.. Okay

  23. anonymous
    • one year ago
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    9.75

  24. mattyboyy
    • one year ago
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    actual I think we messed up

  25. mattyboyy
    • one year ago
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    we need to add 1.5 to 9 I believe so that gives us 10.5

  26. anonymous
    • one year ago
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    Yeah because it was a plus sign right?

  27. anonymous
    • one year ago
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    10.5

  28. mattyboyy
    • one year ago
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    I'm doing it wrong...

  29. mattyboyy
    • one year ago
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    @robtobey

  30. anonymous
    • one year ago
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    \[9 (u-2)+1.5 u=8.25\text{ },\text{ }u=2.5 \]

  31. anonymous
    • one year ago
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    Alright, that does the job lol. Thanks very much robtobey, appreciate it.

  32. anonymous
    • one year ago
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    Your welcome.

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