Since there is a common difference of one, this is an arithmetic sequence of the form a(n)=a+d(n-1) which in this case is:
a(n)=15+1(n-1)
All arithmetic sequences have a sum which is equal to the average of the first and last terms time the number of terms, mathematically:
s(n)=(2an+dn^2-dn)/2 (that is just the result of ((a+a+d(n-1))(n/2)) )
Since a=15 and d=1 this becomes:
s(n)=(30n+n^2-n)/2
s(n)=(n^2+29n)/2 so
s(10)=(100+290)/2
s(10)=195 logs
J = m - 1 1/4 (ft).......j = m - 15 inches...because 1 1/4 ft = 15 inches
m = L + 1/3 (ft).......m = L + 4 inches....because 1/3 ft = 4 inches
L = 62 inches
m = L + 4
m = 62 + 4
m = 66 inches or 5.5 ft <==Maria
j = m - 15
j = 66 - 15
j = 51 inches or 4.25 ft <== Juan
Answer:
4
Step-by-step explanation:
PEMDAS
Answer:
<h3>0.057 miles per minute</h3>
Step-by-step explanation:
2 miles and 35 minutes
= 2 miles / 35 minutes
= 0.057 miles per minute
5/6÷2/1
=5/6×1/2
=5/12 i hope this helps
