Homework 10: Integer Operations Applications

In 2010, a company reported a net loss of 16 thousand dollars. In 2013, the same company reported a net profit of 45 thousand dollars. How much more money did the company make in 2013 than 2010?

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CCSS.7.NS.A.3

A deep-sea diver descends below the surface of the water at a rate of 72 feet per minute. Find the depth of the diver after 12 minutes.

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CCSS.7.NS.A.3

The enrollment at a middle school dropped by 168 students from 2015 to 2019. Find the average change in the number of students each year.

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CCSS.7.EE.B.3

Marcy has $128 in her checking account. If she writes a check for $215 and deposits $80, find the balance in her account.

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CCSS.7.NS.A.3

The value of last year’s model car has depreciated by $1300 in value. If a dealership has 9 of these vehicles left in stock, find their total change in value.

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CCSS.7.NS.A.3

The temperature of a sample of liquid nitrogen was recorded at -124° F. Six hours later, the temperature was recorded as -202° F. Find the average change in temperature each hour

The stock market lost 231 points on Tuesday then lost 128 more points on Wednesday. Find the change in points over the two days.

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CCSS.7.NS.A.1C

ace, Kara, and Troy are playing a trivia game. The table below gives their points on the first two turns. Which person has the current highest score?

A bird was flying 261 feet above sea level, then dives into a valley 83 feet below sea level. Find the depth of the dive.

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CCSS.7.NS.A.1C

A submarine descends towards deeper water at a rate of 6 feet per minute. Find the total change in depth after 24 minutes.

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CCSS.7.NS.A.3