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Alla [95]
2 years ago
13

David is buying fish for his aquarium. Clown fish cost $12 each and angel fish cost $7 each. If he has $100 to spend, and he wan

ts to spend every dollar, how many of each fish can he buy?​
Mathematics
1 answer:
Anni [7]2 years ago
3 0

Answer:

6 clown fish and 4 angel fish

Step-by-step explanation:

<u>lets say he bought 8 clown fish. </u>

12*8 = 96

the last 4 dollars wont be used.

<u>lets say he bought 7 clown fish-</u>

12*7 = 84

100 - 84 = 16. 16 is not a multiple of 7.

<u>lets say he bought 6 clown fish,</u>

12*6 = 72

100 - 72 = 28

28/7 = 4

If David has $100 dollars to spend and wants to spend every dollar, he can buy 6 clown fish and 4 angel fish.

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Answer:

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Step-by-step explanation:

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0 = 4x - 12y +1            Substract 12y from both sides

-1 = 4x - 12y  as  4x - 12y = -1      Substract -1 from both sides

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Hello from MrBillDoesMath!

Answer:

The lines do not intersect


Discussion:

Where do the lines intersect?

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