Step-by-step explanation:
Sum of arithmetic terms = n/2 × [2a + (n - 1)×d], where 'a' is the first term, 'd' is the common difference between two numbers, and 'n' is the number of terms.
this is the same as n/2 × (a1 + an), because
an = a1 + (n-1)×d
so, for the series above :
a or a1 = 2
d = 7, as every new term is the previous term plus 7.
for n
37 = a1 + (n-1)×d = 2 + (n-1)×7
and now solve for n
35 = 7n - 7
42 = 7n
n = 6
so, the sum of all terms is
6/2 × (2+37) = 3×39 = 117
All we need to do it subtract 281 from 2685 and divide that number by 2 to find out how many base hits Ricky made.
2685 - 281 = 2404
2404/2 = 1202
So Ricky made 1202 base hits
To find out how many Pedro made, just add 281 to Ricky's number and you have your answer
1202 + 281 = 1483
Hope that helps! :)
Answer:
15 months
Step-by-step explanation:
35x+20=545
Subtract 20 from both side to figure out how many months he paid for....
35x+20-20=545-20
35x=525
Divide 35 on both sides....
x=15
Therefore, he has been a member for 15 months
Check:
35(15)+20=545
525+20=545
545=545
IT'S CORRECT!!!
MARK ME BRAINLEST PLS THANKS :)
Answer:
(4x + 2) x 3
4x + 2 x 3
4x + 6
4x/4 = X + 6/4 = 1.5
X = 1.5 I think
P.S. hope this helped if it is correct may I get Brainliest
