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LiRa [457]
3 years ago
12

A car travels 41 km in 31 minutes.

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
6 0

Answer:

79.4KM/HR

Step-by-step explanation:

S=D/T

S=41km/31 min           31/60

S=79.4 KM/HR

My name is Ann [436]3 years ago
5 0

Answer: 1.30 every km

Step-by-step explanation:

to find the speed per km, you do 41 divided by 31.

41/31= 1.30 per km (rounded)

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Ede4ka [16]

Answer:

x=-4

Step-by-step explanation:

-2x+18-1x+4=34

step 1 combine like terms

-2x+-1x=-3x

18+4=22

-3x+22=34

step 2 subtract each side by 22

-3x=12

step 3 divide each side by -3

x=-4

hope this helps (:

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2 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
A group of 40 bowlers showed that their average score was 192. Assume the population standard deviation is 8. Find the 95% confi
kodGreya [7K]

Answer:

CI=189.5,194.5

Step-by-step explanation:

From the question we are told that:

Sample size n=40

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Standard deviation\sigma=8

Significance Level \alpha=0.05

From table

Critical Value of Z=1.96

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 CI=192 \pm 2.479

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2 years ago
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