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bearhunter [10]
3 years ago
9

How can I explain with mental math

Mathematics
1 answer:
jeka943 years ago
6 0
Use a property that’s a good reason then tear it apart
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PLZ HELP DUE AT 12
aleksandrvk [35]

Answer:

The first one would be m^30n^20p^30  

And the second one would be a^2 / d^4  

Step-by-step explanation:

For 1, you have to multiply the inner exponents by the outer one so you get (m^12n^8) times (m^18n^12p^30). Then you mutiply the two together, so you add the exponents, where you get m^30n^20p^30.

For 2, since you're dividing, you have to subtract the exponents so you get a^2d^-4, but since you shouldn't have the negative you turn it into a^2 / d^4

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THE ORIGINAL CARS Movie MADe 450
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Answer:

34% decrease

Step-by-step explanation:

(V1-V2)/V1x100

450-297=153

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0.34 x 100=34

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The fountain in the pond at the public park near Kevin’s house has a pump that recirculates 75 gallons of water in 1/4 of an hou
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If it pumps 75 gallons in 1/4 of an hour (15 minutes), then if you times that by four to make it a full hour (60 minutes). 75 times 4 is 300.

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