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As a block of ice melts, its weight changes from 1 3/4 lb to 1/4 lb. This change takes 1/4 h. The ice melts at a constant rate. At what rate does the weight of the ice change? Show your work.

pleaseeeeee help =)

2 Answers

5 votes

Question:-

As a block of ice melts, its weight changes from 1 3/4 lb to 1/4 lb. This change takes 1/4 h. The ice melts at a constant rate. At what rate does the weight of the ice change?

Answer:-

You should have these values backwards like:-

=> 1/34 lb is less than 1/4 lb.

Next:-

We're gonna find a specific common denominator,

Then we get: (17/68 - 2/68)/(1/4) = 60/68 = 15/17 lb/hour

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User UDID
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\huge{ \mathfrak{ \underline{ Answer}}} \: \: ✓

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Change in weight :


  • 1 (3)/(4) - (1)/(4)


  • (7)/(4) - (1)/(4)


  • (6)/(4) lb

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Time taken to melt :


  • (1)/(4) \: hr

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Rate of change in weight of ice :


  • \mathrm{ (change \: \: in \: \: weight)/(time \: taken) }


  • (6)/(4) / (1)/(4)


  • (6)/(4) * 4


  • 6

The rate of change in weight of Ice is 6 lbs per hour ( 6 lb / h )

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\mathrm{ \#TeeNForeveR}

User BoazGarty
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