The new slope is 3, but the y-intercept doesn't change.
3. We can see that
1+100=101
2+99=101
3+98=101
.................
and so on
From 1 to 100, there are 50 pairs that has the sum is 101
Z=101×50=5050
4. We can see that
1-2=-1
3-4=-1
5-6=-1
...........
and so on
There are 10 pairs that has sum is -1
Z= 10×(-1)=-10
The plane will descend 900 ft every minute
This is the case because we divide 4500 by 5
Hope this helps and have a great day!
Multiply 1.275 with 51 to get the answer (65.025)