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3 years ago

A train is moving at a uniform speed of 75 km/hour. How far will it travel in 20 minutes

Mathematics

1 answer:

AnnZ [28]3 years ago

6 0

Answer:

15km in 20 minutes

Step-by-step explanation:

Distance covered by the train in 20 minute =75km60×20=25km. Hence, the train will cover 15km in 20 minutes.

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Jonathan's preschool class has 9 girls and 6 boys. Which proportion can be used to determine the percent, P, of boys in class?

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Answer:

Step-by-step explanation:

you are comparing percent to percent and total boys to total class.

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3 years ago

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All Seasons Plumbing has two service trucks that frequently need repair. If the probability the first truck is available is 0.75

oksano4ka [1.4K]

Answer: There is a probability of 0.05 that there is neither truck is available.

Step-by-step explanation:

Since we have given that

Probability that the first truck is available = 0.75

Probability that the second truck is available = 0.50

Probability that both trucks are available = 0.30

So, probability that either first truck or second truck is available is given by

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\P(A\cup B)=0.75+0.50-0.30\\\\P(A\cup B)=0.95$

We need to find the probability that neither truck is available.

so, P(A∪B)'=1-P(A∪B)

$P(A\cup B)'=1-0.95=0.05$

Hence, there is a probability of 0.05 that there is neither truck is available.

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3 years ago

1Ox+6-8x=9x +12-8x-2

Goshia [24]

Answer:

X=4

Step-by-step explanation:

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3 years ago

The sum of three consecutive even numbers is 24 , find the numbers.

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Answer:

three consecutive even integers whose sum is 24 are 6, 8 and 10.

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3 years ago

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Which ratio is equivalent to 4 : 13?

Nana76 [90]

B would be the correct answer. If you take 4:13 in order to form a ratio equal to that you have to multiply both sides of the ratio by the same number. 4*4=16 and 13*4=52

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