Factor 42 into factor pairs and add them and see which ones add to -13
remember both must be negative
-1-42=-43 nope
-2-21=-23 nope
-3-14=-17 nope
-6-7=-13 yep
the numbers are -7 and -6
Answer:
d
Step-by-step explanation:
3/5 is equal to .6. however it can be simplified from 6/10, 9/15, etc
but 4/6 cannot be simplified to 2/5
Step-by-step explanation:
= - 4
= a* + (3- 1) d*
- 4 = a + 2d . . . . . . . . .(i)
= - 29
= a + ( 8 - 1) d
- 29 = a + 7d . . . . . . . . (ii)
subtracting equations (i) and (ii)
25 = 5d
d = -5
placing d = -5 in equation (i)
a - 10 = -4
a = 6
For an arithmetic Progtession
= a + (n - 1)d
= 6 + (n- 1)-5
= 6 - 5n + 5
*
*
It's 7 because .7 rounds up.
The answer is 26 :) because that way 26 and 26+4=30