Unit 6 lesson 6

posted by Isaac

1.Which ratios form a proportion

A.3/15,12/55 B.8/24,12/35 C.5/18,25/90D.4/11,16/25
2.Which ratio forms a proportion with 9/15
A.6/10B.16/21C.36/50D.45/70

  1. Ms. Sue

    A.3/15,12/55 No. 55 is not divisible by 15.

    B.8/24,12/35 No

    C.5/18,25/90 Yes. 25/90 = 5/18

    D.4/11,16/25 No.

    If you try to solve the other problem, I'll be glad to check it.

  2. Isaac

    i think d

  3. Ms. Sue

    Why do you think D?

    Does 9/15 = 45/70?

  4. Isaac

    no sry im not good at math
    AT ALL. ill try again

  5. Isaac

    OH i know its A
    in 10 is 66% of 15
    and 6 is 66% of 9

  6. Ms. Sue

    Right!

    See -- you're not so bad at math. You remembered the way to solve this problem.

  7. Isaac

    ok thx see ya

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