It's 10,-9 because when you 0lug it in it equals 11
D) is correct.
Looking at the graph, it goes through the point (2, 200) and is very near the point (3, 300). This means it increases by nearly 100 every month; this tells us how much she saves each month.
Let's call the smallest of the three even integers ' T ' (for 'tiny')
The second even number is T + 2.
The third even number is T + 4.
Add up the 3 even numbers: T + (T + 2) + (T + 4) = 3T + 6
This is 30 more than the smallest of the three.
3T + 6 = T + 30
Subtract T from each side: 2T + 6 = 30
Subtract 6 from each side: 2T = 24
Divide each side by 2 : T = 12
The three consecutive even integers are 12, 14, and 16 .
Check: 12 + 14 + 16 = 42 . By George, that's 30 more than 12 !
Answer:
We know that,
1week=7days.
So,
3weeks:3days = 3×7days:3days
= 21days:3days
=
3
21
=
1
7
= 7:1
