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Math hw question?


the ratio of bob's telephone bill to amanda's telephone bill was 7:5. bob's bill was 14 dollars more than amanda's bill. what was bob's bill?




what is the answer? thanks!

You can see from the ratio 7:5 that there is a difference of 2 between bob's bill and amanda's bill.
The question asks you to find the figures when there is a difference of 14, so - as 14 divided by 2 is 7 - this is true when the ratio is multiplied by 7. Giving:
49 : 35
So Bob's bill is 49.

61

The answer is 49, 61 is incorrect 7x7=49 5x7=35
49-35=14

7x=5x+14
2x=14
x= 7

7脳7=49

$49

$49

49 dollars

7:5
7x=5x+14
-5x -5x
2x=14
x=7
to checK:
7(7):5(7)= 49:35
_ 49
35= 14

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