Quiz for 7.NS.1.d

Many bank accounts never go below zero. But some banks will allow a negative balance, at least for a short time, called an overdraft. It means someone has taken out, or 'drafted', more money than was in the account to begin with. Violet's account has gone into overdraft. Her balance is $-25.33. To get back to a positive balance, she plans to deposit money at a steady rate of $20.68 per week. How much will be in her account after 4 weeks?

Mathematical Equivalence

ON

A scientist uses a submarine to study ocean life.

• She begins at sea level, which is an elevation of 0 feet.

• She travels straight down for 74 seconds at a speed of 4.8 feet per second.

• She then travels directly up for 27 seconds at a speed of 3.7 feet per second.

At this point, what is her elevation, in feet?

Mathematical Equivalence

ON

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7.NS.1.d

Imagine Zoe, Daniel, and Abigail are on a late-night adventure. From midnight to 4:00 am, they noticed the temperature dropping 0.6°C each hour. If the temperature at 4:00 am was -7.4°C, can you help them figure out what the temperature was at the start of their adventure at midnight?

• -5.2°C

• -5.0°C

• -2.8°C

• -8.9°C

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7.NS.1.d

A scientist uses a submarine to study ocean life.

• She begins 192 feet below sea level.

• After descending for 3 seconds, she's 257 feet below sea level.

Find the rate of change in the submarine's elevation in feet per second. If necessary, round your answer to the nearest tenth.

Mathematical Equivalence

ON

Tags

7.ns.1.d

From 6:00 am to 10:00 am, the temperature rose 0.8°C each hour. If the temperature at 10:00 am was 10.4°C, what was the temperature at 6:00 am?

• 6.8°C

• 7.2°C

• 8.0°C

• 9.6°C

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7.NS.1.d

Charlotte, Liam, and Ava were having a fun afternoon picnic from 2:00 pm to 6:00 pm. They noticed that the temperature dropped 0.5°C each hour. If the temperature at 6:00 pm was 15.0°C, can you help them figure out what was the temperature at 2:00 pm when they started the picnic?

• 17.0°C

• 16.0°C

• 18.0°C

• 19.0°C

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7.NS.1.d

It's a chilly winter night and Liam, Mason, and Anika are having a sleepover. From 8:00 pm to midnight, while they were watching their favorite movies, the temperature outside dropped 0.7°C each hour. If the temperature at midnight was -3.8°C, can you help them figure out what was the temperature at 8:00 pm?

• -1.2°C

• -0.6°C

• -2.0°C

• -3.6°C

Tags

7.ns.1.d

Mathematical Equivalence

ON

Tags

7.NS.1.d

Mathematical Equivalence

ON

Tags

7.NS.1.d

Mathematical Equivalence

ON

Tags

7.NS.1.d