Question

choose 2 numbers whose sum is about 7?
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.