kaleyperry014
Answered

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I WILL GIVE YOU BRAINLIST Liam and kiki are tigers living at the libertyville zoo. Liam weights 7 pounds for every 4 pounds that Kiki weighs. If Liam is 90 pounds more than Kiki, how many pounds does he weigh?​

Sagot :

rspill6
  • Answer:  Kiwi is 120 lbs and Liam is 210 lbs

Step-by-step explanation:

Let L= Liam's weight, and K = Kiwi's weight.

We know that L/K = 7/4

We also know that L = K + 90

Rearrange the first equation to find K:  

  • L/K = 7/4
  • 4L = 7K
  • K = (4/7)L

Now use K = 4L/7 in the second equation:

  • L = K + 90
  • L = (4/7)L + 90
  • (3/7)L = 90
  • L = (90)*(7)/3
  • L = 630/3
  • L = 210 lbs

Check the math:

If L = 210, then K must be L - 90, or 120 pounds

Does L/K = 7/4?

(L/K) = (210/120) = 7/4  YES

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