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melamori03 [73]
3 years ago
10

The temperature in Mr. Garcia's fish tabk is 7°C at 1pm Ms. Pennington places an icepack in the tank , causing the temperature o

f the water to drop at a rate of rate of 3 degrees per hour for the nest 5 hours. What is the temperature at 6pm?
Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

First, Multiply 5 by 3 to get how much the temperature decreased.

5*3=15

Then, add 7 to 15 to get the total amount how much the temperature decreased.

15+7=22

The answer to your question is 22.



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Assuming LCD means Lowest Common Denominator
Assuming by "and" you mean adding the two

Well, you go by the multiples of 7;
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Multiples of 10;
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Straight away you can see the lowest common multiple is 70,

Now to go about adding them,
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Then you add the two; 20/70 + 63/70  - now we can add them because they share the same denominator
20/70 + 63/70 = 83/70 = 1 whole 13/70 (simplified)

<u>The LCD is 70

Quick tip, </u>to find a common multiple (not necessarily the lowest) multiply the two denominators. 
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Step-by-step explanation:

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Answer:

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