choose 2 numbers whose sum is about 7?

Question

8 4/5
8 7/10
-1.6
7 9/10
9 3/10
-1.4
-3.0
-1.4
-2.2
7 4/5
10 2/5
-0.9

Answer 1

To find two numbers from the list that sum to approximately 7, let's evaluate the options:

1. 8 4/5 (which is 8.8)
2. 8 7/10 (which is 8.7)
3. -1.6
4. 7 9/10 (which is 7.9)
5. 9 3/10 (which is 9.3)
6. -1.4
7. -3.0
8. -1.4
9. 7 4/5 (which is 7.8)
10. 10 2/5 (which is 10.4)
11. -0.9

By checking combinations, we find:

• 7 9/10 (7.9) and -1.6 (-1.6):
  \(7.9 + (-1.6) = 6.3\) (not close)

• 7 4/5 (7.8) and -1.4 (-1.4):
  \(7.8 + (-1.4) = 6.4\) (not close)

• 7 9/10 (7.9) and -1.4 (-1.4):
  \(7.9 + (-1.4) = 6.5\) (not close)

• 7 4/5 (7.8) and -0.9 (-0.9):
  \(7.8 + (-0.9) = 6.9\) (close to 7)

After checking the pairs, the numbers 7 4/5 (7.8) and -0.9 combine to give the sum closest to 7.