Module 3 Practice #2

Elijah has a rope that is 12 feet long that he is going to use for two different projects. He uses a piece of the rope that is 5 feet long on his first project. Which statement describes how a number line can be used to find the length of rope Elijah has remaining for his second project?

• Start at 12 and move 5 units left.

• Start at 12 and move 5 units right.

• Start at 5 and move 12 units left.

• Start at 5 and move 12 units right.

Answer explanation

To find the length of wire John has remaining for his second task, start at 9 on the number line and move 4 units to the left. This represents using a piece of wire that is 4 feet long on the first task. The remaining wire length can be found by subtracting 4 from 9, which gives us 5 feet. Therefore, the correct statement is to start at 9 and move 4 units left.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Tags

CCSS.7.NS.A.1C

Jabar is playing a racing game on his phone. He jumped over a cavern and earned 100 points. Then, he ran into an elephant and lost 60 points. Next, he drove his car into a garbage can and lost 85 points. Finally, he won the race and earned 200 points. Write an equation Jabar can use to find his final point total. TYPE YOUR EQUATION WITH NO SPACES.

Tags

CCSS.7.NS.A.3

An original Smurf figure was valued at $225.00 in June. The figure's value decreased by $35 the following month. Then, the value increased by $20 and then decreased by $40 over the subsequent two months. What was the value of the Smurf after these fluctuations?

• $250.00

• $170.00

• $320.00

• $280.00

Answer explanation

The value of the share increased by $6.00 after a month, then decreased by $2.00 and $3.00 over the subsequent two months. Adding the initial value of $4.00 to the increase and subtracting the decreases, the final value of the share is $9.00. This is the correct choice.

Tags

CCSS.7.NS.A.3

A mountain climber started climbing a mountain and stopped for a rest when he was at an elevation of 20 ft. He then slipped on some moss and tumbled down 18 ft. He got up, dusted himself off, and decided to climb another 50 ft. before stopping for a snack. What is the mountain climber's new elevation? Type the number ONLY.

Tags

CCSS.7.NS.A.3

Ms. T bought 1,000 ducks to hand out to on task students. On Tuesday she handed out 41 ducks. She then received an Amazon delivery for another 1,000 ducks. Then, she handed out 57 ducks. How many ducks were left?

Tags

CCSS.4.OA.A.3

Felicity deposits $150 into her checking account. Her balance after the deposit is $210. Plot two points on the number line to represent the amount of Felicity's deposit and her balance before the deposit.

Tags

CCSS.7.NS.A.1C

The temperature in Miami is 96°C. The temperature in Jacksonville is 21°C colder than the temperature in Miami. Plot two points on the number line to represent the temperature in each city.

Tags

CCSS.6.NS.C.6C

The temperature in Alaska is -19°C. The temperature in Florida is 65°C warmer than the temperature in Alaska. Which equation shows the temperature, in °C, in Florida?

• -19°C - 65°C = -84°C

• 19°C - 65°C = -46°C

• -19°C + 65°C = 46°C

• 19°C + 65°C = 84°C

Answer explanation

The question asks for the equation that shows the temperature in Bluefield, which is 3.5°C warmer than the temperature in Woodriver. The correct equation is '20 + 3.5'. This equation adds 3.5 to the temperature of 20, representing the 3.5°C increase in Bluefield. The other options either subtract 3.5 or have incorrect values. The explanation highlights the correct choice without mentioning the option number and states that the question is about the equation, not the query.

Tags

CCSS.7.NS.A.1C

A stork is flying 45 meters above the ground. The stork ascends 9 meters before descending 17 meters and then continues flying at a constant height with his stork friends. Which moves on a number line BEST model the change in height of the stork?

• Start at 45 and move 9 spaces to the right. Then move 17 spaces to the left

• Start at 45 and move 9 spaces to the left. Then move 17 spaces to the right

• Start at -17 and move 9 spaces to the left

• Start at -17 and move 9 spaces to the right

Answer explanation

The question asks for the number line that best models the change in height of the helium balloon. The balloon descends 15 meters and then ascends 7 meters, resulting in a net change of -8 meters. Therefore, the correct choice is '-15 + 7 = -8'. This choice accurately represents the change in height of the balloon without mentioning the option number. The explanation is within the word limit of 75 words.

Tags

CCSS.7.NS.A.1B