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padilas [110]
3 years ago
15

Paco had 13 cookies. He ate 6 of them. How many cookies does Paco have left? Show how you can solve this problem in 2 different

ways.
Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
6 0

Answer:

Step-by-step explanation:

The first way you can explain is the simple standard way of subtraction using 13-6=7 or you can count up from 6 to 13 and see how many numbers are found in between.

dusya [7]3 years ago
4 0

Answer:

He has 7 cookies left

Step-by-step explanation:

13-6=7 7+6=13

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Solving for x:  </span><span>9/x-4/y=8       Mult all 3 terms by xy to eliminate the fractions.

9(xy)/x - 4xy/y = 8xy         =>       9y - 4x = 8xy, or 9y = 4x + 8xy = 4x(1+2y)

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Solve for y using a similar approach.

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2 years ago
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