Sum of the terms of the series is
Sn = n/2 ( a1+an )
we have n= 6 , a1= 17, an = 57
so Sn = 6/2 ( 17+57) = 3(74) = 222
Answer:
the answer is y =p(t + 4)/2
Answer:
$210
Step-by-step explanation:
The first thing we can do is to add the $25 back on to the total cost.
25 + 115 = 140.
We do this because he Sam used a gift certificate on the ski's that are already 2/3 of the original price.
Now, to find the original price we can use this equation:
X represents the original price.
To solve this equation you would flip 2/3 to 3/2 and multiply that by 140, as seen below:
Now you can solve:
We can check this answer by multiplying 210 by 2/3
(210)(2/3) = 140
Remember, Sam used a gift certificate for $25
140 - 25 = $115
Therefore, the original price of the skis is $210.
<em>I hope this helps!!</em>
<em>- Kay :)</em>
Answer:
My answer would be 9 unit away
Step-by-step explanation:
becuase you can subtract 0 from -9
0 + -9 would equal -9
then 9 - (-9) = 0
so 9 is my answer
sorry if i am wrong
Answer:
Step-by-step explanation: