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siniylev [52]
3 years ago
15

Two computers working together can finish a search in 30 seconds. One of these computers can finish in 50 seconds. How long woul

d it take the second computer to finish the same search if it were working alone?
Mathematics
2 answers:
lbvjy [14]3 years ago
4 0
I think the answer is 10 seconds, because 50+10=60/2=30. I'm not sure if that's right tho
Vikentia [17]3 years ago
4 0
The best way to look at it is assume there are 60 units of work and the two computers together complete the task in 30 seconds. So together they can do 2 units per second on average. The first computer can do the 60 units of work by itself in 50 seconds, which is 60/50 so it's doing most of the work in the group since the average of the individuals in the group is lower.
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Gary draws this sequence of patterns of white and grey squares. The sequence is continued. How many grey squares will there be w
zzz [600]

Answer:

20 gray squares

Step-by-step explanation:

Given

See attachment for squares

Required

Number of gray squares when white = 16

First, we calculate the equation that represents both squares.

<u>The white squares</u>

a = 2 --- initial

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d = 2 -- difference between successive gray squares

So, the nth term is:

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<u>The gray squares</u>

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d = 2 -- difference between successive gray squares

So, the nth term is:

G_n = a + (n - 1)d

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4 0
2 years ago
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