<span>0-40,0
1-20,20
2-15,25
3-13,27
4-13,27
5-13,27
6-13,27
7-13,27
8-13,27
9-13,27
10-13,27</span>
Answer:
A. X<4
Step-by-step explanation:
move the constant to the right hand side and change its sign
X<-5+9
calculate the sum
-5+9=4
X<4
We know that
the formula of the <span>the sum of the arithmetic sequence is
Sum=n*(a1+an)/2
n=36
a1=3
a36=?
find a36
an=a1+(n-1)*d
for n=2 a2=9
9=3+(2-1)*d----> 9=3+d----> d=6
so
for n=36
a36=a1+(36-1)*6----> a36=3+35*6----> a36=213
</span>Sum=n*(a1+an)/2-----> 36*[3+213]/2----> 3888
the answer is
3888
Since Charles runs a 1/4 mile in 10 minutes, and 1/4 goes into 1 1/2 6 times, the answer is 10*6, which is 60.
The answer is 10. Apex :)
