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Sveta_85 [38]
2 years ago
15

Calculate: 1/1x3+1/3x5+…+1/47x49

Mathematics
1 answer:
shtirl [24]2 years ago
3 0

Answer:

24/49

Step-by-step explanation:

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Need help please thank you
umka21 [38]
2 cakes - Theresa's and Joe's
Theresa's cake had 6 pieces after she cut it. (2 times the size of Joe's pieces)
Joe's cake had 12 pieces after he cut it. (1/2 the size of Theresa's pieces)

We know that 8/12ths of ONE cake were eaten and that Joe ate 2 of his pieces.
We want to know how many pieces Theresa ate of her cake. Keeping in mind that her pieces are equal to 2 of Joe's pieces we can solve this question. 

8/12 eaten total
if 2/12 by Joe
then 8-2 = 6, 6/12 by Theresa
(BUT: Theresa's pieces were twice the size of Joe's so we will divide by 2)
6/12 = 3/6

Answer: Theresa ate 3 pieces of her cake

7 0
3 years ago
3000x + 2000 = -1000
Umnica [9.8K]

Answer:

x=-1

Step-by-step explanation:

8 0
2 years ago
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ololo11 [35]

Answer:

15

Step-by-step explanation:

10 is 5 less than fifteen.

Sorry if its wrong

5 0
2 years ago
A sample of 49 observations is taken from a normal population with a standard deviation of 10. the sample mean is 55. determine
Anna35 [415]
The answer I think is D.
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3 years ago
acceleration is a(t) = 3t and velocity is v(t) = 1 at t = 1, what is the displacement from t = 2 to t = 4
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Step-by-step explanation:

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