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Nady [450]
3 years ago
5

PLZ HELP ASAP One pump fills a tank 4 times as fast as another pump. If the pumps work​ together, they fill the tank in 20 minut

es. How long does it take for the faster pump to fill the​ tank?
Mathematics
1 answer:
svp [43]3 years ago
3 0
It takes the faster pump 12 minutes to fill the tank.

Since the faster truck can produce 60% more than the other truck. 60% of 20 minutes is 12.
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Round 0.199 to the nearest hundredth
Sholpan [36]
Well, you take 0.199 find the hundredths place, which is the 9 to the left in this example, and decide whether the number to the right of the nine is more than 5, which it is, so we round the 9 up. However, we can't just make it 10 hundredths, so we have to simplify it to 1 tenth and add it onto the tenths place to make 0.20.
8 0
3 years ago
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A private detective figures that he has a one in ten chance of recovering stolen property for his client...
slamgirl [31]

Answer:

C) The expected value is -$2000, so the detective should not take the job.

Step-by-step explanation:

The expected value is the sum of products of income and probability:

E = -10,000·1.00 + 80,000·0.10 = -10,000 +8,000 = -2,000

The detective can be expected to lose money on the job, so should not take it.

4 0
4 years ago
In a​ survey, 36​% of the respondents stated that they talk to their pets on the telephone. A veterinarian believed this result
Damm [24]

Answer: p value is 0.1685.

Step-by-step explanation:

Since we have given that

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Out of them, number of owners spoke to their pet on telephone = 79

n = 240

x = 79

\hat{p}=\dfrac{x}{n}=\dfrac{79}{240}=0.33

Our hypothesis would be

H_0:p=0.5\\\\H_1:p>0.5

Formula for test statistic would be

\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\=\dfrac{0.33-0.36}{\sqrt{\dfrac{0.36(1-0.36)}{240}}}\\\\=-0.96

p value = 0.1685

Hence, p value is 0.1685.

4 0
4 years ago
One number is 9 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 606​,
vlada-n [284]
Let first number = x  then

we have x and 9x and x + 100 

x + 9x + x + 100 = 606
11x + 100 = 606
11x = 506
x = 46 

so the three  numbers are 46, 146 and 414   Answer
8 0
3 years ago
Solve the problem. WILL GIVE BRAINLIEST
vaieri [72.5K]
<span>5  x  4    
--     --    = </span> 5 × 48 × 15 = 20/120<span><span><span>
8</span> × 15      </span><span>After reducing the fraction, the answer is <span>1/6</span></span></span>
8 0
3 years ago
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