Answer:
225
Step-by-step explanation:
The sum of this series is given by the formula:
Where
S_n is the sum
a is the first term (we get this by plugging in n = 1 into "2n-1", we have 2(1) - 1 = 1)
n is the number of terms (the sum is defined for n = 1 to n = 15, so 15 terms)
d is the common different (the difference is successive terms. Here, 2nd term would be 2(2) - 1 = 3, and first term was 1, so d = 3 -1 = 2)
<em>plugging in the info, we will get the sum:</em>
<em></em>
<em>The sum is 225</em>
OKOK
A salesperson averaged $120 per 10 days sooo 120/10 is 12 so about 12 per day
So,
You guess the amount that could make up a number around 150or 160
So 12 x3 = 36 + 120=156 hallelujah!
So, 3 more days until she can average $160 in order to bring her overall average to 150%.....
Hope this helps. :::)))))
Answer:
She subtracted 7x instead of dividing it. Personally, i wouldn't have done that. I would subtract the 14 first, then divide.
Answer:
14 ÷ 9 = 1.55555555556
9 ÷ 14 = 0.64285714285
14 ÷ 5 = 2.8
5 ÷ 14 = 0.35714285714
Step-by-step explanation:
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