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melomori [17]
3 years ago
10

At 8:00 AM a bicyclist departed city A, heading towards city B at a rate of 20 km/h. After traveling for 4 hours he stopped for

an hour break. At the same time, a biker left city A traveling in the same direction at the rate of 50 km/h. will give brainliest plz dont troll
Mathematics
1 answer:
notka56 [123]3 years ago
7 0

Answer:

Biker will catch the cyclist after 2 hr and 40 min.

Step-by-step explanation:

Given:

Speed of Bicyclist = 20 km/h

Travelling time = 4 hrs

∴ Distance = Speed × Time = 20\times4=80 \ km

Also he rest for 1 hr.

So we can say that, after 5 hrs Bicyclist is 80 km ahead when the biker Started.

Now Biker rate is given 50 km/h

And Bicyclist rate is 20 km/h

So, for each hour, biker advances 50 - 20 = 30 kilometers

now bicyclist distance is 80 km

and biker advances 30 per hour.

Therefore to catch up bicyclist at 80 km i.e time taken to reach 80 km with 30 km rate per hour.

Time = \frac{80}{30}=2 \frac{2}{3} h

Hence, Biker will catch the cyclist after 2 hr and 40 min.

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lord [1]
<h3>Answer:</h3>

(x, y) ≈ (1.49021612010, 1.22074408461)

<h3>Explanation:</h3>

This is best solved graphically or by some other machine method. The approximate solution (x=1.49, y=1.221) can be iterated by any of several approaches to refine the values to the ones given above. The values above were obtained using Newton's method iteration.

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Setting the y-values equal and squaring both sides of the equation gives ...

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8 0
3 years ago
Helpp i dont understand
AnnZ [28]
Betina is 155 centimeters tall or 1 meter and 55 centimeters

1 meter = 100 centimeters
100 + 87 = 187 , Brian’s height in centimeters

Since Bonnie is 58 centimeters shorter we will subtract 187-58 which gives us 129 centimeters.

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5 0
3 years ago
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lozanna [386]

Answer:

552

Step-by-step explanation:

4 0
3 years ago
A t shirt maker wants to open his first store.If he chooses the store on Main Street he will pay 650 in rent and will charge 32$
ch4aika [34]

Answer: 35 t shirts

Step-by-step explanation:

Let number of t shirts be x

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On main street, the store costs $650,

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Rzqust [24]

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1/4

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