14. In the Manchester Building, the elevation of the basement floor is -16 ft. The elevation of the roof is 37 feet. What is the distance from the basement floor to the roof? (Hint: Draw a picture or a number line.)(1 point)
53
-21
-53
21
To find the distance from the basement floor to the roof, we need to subtract the elevation of the basement floor (-16 ft) from the elevation of the roof (37 ft).
37 ft - (-16 ft) = 37 ft + 16 ft = 53 ft
So, the distance from the basement floor to the roof is 53 feet.
Therefore, the correct answer is 53.
11. Mrs. Taylor is crocheting a blanket for her daughter. She made of the blanket green, of the blanket blue, and the rest of the blanket was yellow. Which fraction represents the yellow part of the blanket?(1 point)
5
8
1
2
3
4
3
8
The fraction that represents the yellow part of the blanket is 3/8.
12. For Aliyah’s graduation party, her mom made her a chocolate cake. Her siblings ate
1
4
of the cake, and her friends ate of the cake. How much of the cake was left?(1 point)
3
4
1
12
5
6
1
2
To find out how much of the cake was left, we need to subtract the fraction of the cake that was eaten from 1 (whole cake).
Her siblings ate 1/4 of the cake, and her friends ate 5/6 of the cake.
1 - (1/4 + 5/6)
To add these fractions, we need a common denominator. The common denominator for 4 and 6 is 12.
1 - (3/12 + 10/12)
1 - (13/12)
Since the numerator is greater than the denominator, we can simplify this to a mixed number.
1 - (1 + 1/12)
1 - 1/12
12/12 - 1/12
11/12
So, 11/12 of the cake was left.
Therefore, the correct answer is 11/12.
18. What is the change in temperature between −20°F and 30°F?(1 point)
-50 °F
50 °F
-10 °F
10 °F
To find the change in temperature, we need to subtract the initial temperature from the final temperature.
Final temperature: 30°F
Initial temperature: -20°F
30°F - (-20°F) = 30°F + 20°F = 50°F
So, the change in temperature between -20°F and 30°F is 50°F.
Therefore, the correct answer is 50 °F.
19. The temperature was −5°F this morning. If the temperature dropped 8°F, what is the temperature now?(1 point)
13 °F
-3 °F
-13 °F
3 °F
To find the current temperature, we need to subtract the decrease in temperature from the initial temperature.
Initial temperature: -5°F
Decrease in temperature: 8°F
-5°F - 8°F = -13°F
So, the temperature now is -13°F.
Therefore, the correct answer is -13 °F.
20. A Navy submarine is 650 feet below sea level. If it ascends 200 feet, which integer represents its new position?(1 point)
450
-450
-850
850