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SVEN [57.7K]
2 years ago
5

Adrian ran from his house to the park at a speed of 5 meters per second. He ran back from the park to his house at a speed of 6

meters per second. The total time taken to run the whole journey was 22 minutes. How many minutes did he take to run from his house to the park
Mathematics
1 answer:
denpristay [2]2 years ago
7 0

Answer:time taken to run from his house to the park is 12 minutes

Step-by-step explanation:

Let x represent the distance between his house and the park.

The speed at which Adrian ran from his house to the park is 5 meters per second.

Distance = speed × time

Time = distance/speed

Therefore, time taken to run from his house to the park would be

Time = x/5

The speed at which he ran back from the park to his house is 6 meters per second.

Time taken to run back from the park to his house would be

Time = x/6

The total time taken to run the whole journey was 22 minutes. Converting to seconds, it becomes 22× 60 = 1320 seconds. Therefore,

x/5 + x/6 = 1320

Multiplying through by 30, it becomes

6x + 5x = 39600

11x = 39600

x = 39600/11 = 3600 meters

Therefore, time taken to run from his house to the park would be

x/5 = 3600/5 = 720 seconds

Converting to minutes, it becomes

720/60 = 12 minutes

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2 years ago
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<u>Step-by-step explanation:</u>

I created a Venn diagram and labeled it as follows:

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Both Tennis & Football = y

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Now we have two equations and can use substitution to solve for x & y:

42 = 2x + 2y

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y = 2x

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7  = x

We are asked to find how many children play football.

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2 years ago
Which of the following is a true statement for 0 degrees less than theta less than 90 degrees?
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Answer:

c

Step-by-step explanation:

See the graph for an example using the specific angles \theta=60^\circ , \,\, \180^\circ-\theta=120^\circ

See how the red segments are equal  in length but going in opposite directions?

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