1B: Real World Situations with Integers

When elevations increase to higher than 3, 350 feet above sea level, air pressure lowers and food responds differently to baking. The integer that represents the elevation is

• 3,350 ft

• -3,350 ft

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Janice made a withdrawal of $ 445.15 from her checking account to pay her car payment. The integer that represents the change in her checking account is

• $445.15

• -$445.15

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Magnesium and lead ions have a positive charge of 2. Which integer represents their charge?

• +2

• -2

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Lake Assal is a crater lake which lies in the heart of the Danakil Desert, in central Djibouti. At 509 feet below sea level, the lake is the lowest point on land in Africa and the third lowest point in the world. Which integer represents the elevation of Lake Assal?

• 509

• -509

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Which of these situations can be represented by the integer -50? Choose all that apply

• An decrease of $50 in a bank account

• The temperature on a warm spring day

• The distance driven on the way to the beach

• A decrease of 50 employees

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Britney deposits $450 into her checking account. Which of these integers can represent the change to Britney's checking account?

• $450

• -$450

• $0

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After working as a realtor for 5 years, Brandon made a profit of $250,000. Which of these integers represents Brandon's profit?

• $250,000

• -$250,000

• $0

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The Bears gain 20 yards during the first quarter.

• 20 yards

• -20 yards

• 0

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Express an integer: a plane descended (goes down) 3000 ft

• 3000
• 300
• -300
• -3000

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The WCMS basketball team is behind 7 points.

• 7 points

• -7 points

• 0 points

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