Math Ms.Sue please

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1. 2/3 - 5/4

-3
-3/12
23/12
-17/12

2. -6.1 + 1.7

7.8
-4.4
-7.8
4.4

3. -1.8 - 3.9

-2.1
5.7
2.1
-5.7

4. A mountain climber ascends a mountain to its peak. The peak is 12,740 feet above sea level. The climber then descends 200 feet to meet a fellow climber. Find te climber's elevation above sea level after meeting the other climber.

12,540 feet above sea level
12,540 feet below sea level
10,740 feet above sea level
12,940 feet above sea level

My answers:
1. -17/12
2. -4.4
3. -5.7
4. 12,540 feet above sea level

  • Math Ms.Sue please -

    I'm not sure about your first answer. The others are correct.

  • Math Ms.Sue please -

    #1. 8/12 - 15/12 = -7/12
    typo?

    #2 ok

    #3 ok

    #4 ok

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