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Katarina [22]
3 years ago
12

Please help will give brainliest and 30 pts

Mathematics
1 answer:
Rus_ich [418]3 years ago
3 0
You’re not giving 30 points, you’re only giving 5
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What’s the answer to this math problem?v
allochka39001 [22]

<em>Choice-A</em> is the answer to this math problem.

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3 years ago
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Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km
sammy [17]

Answer:

0.5 hour

Step-by-step explanation:

Given

Speed of Dina = 10 km/h

Distance = 20 km

So the time Dina taken to complete the track is:

Speed=\frac{distance}{time}\\10=\frac{20}{time}\\time=\frac{20}{10}\\ time=2\ hours

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,

her distance covered in 2 hours was:

Distance\ covered\ by\ Masha\ in\ 2\ hours=20-4\\=16 km

So we know the time and distance:

Now,

Speed\ of\ Masha=\frac{distance}{time}\\ =\frac{16}{2}\\ =8\ kilometer\ per\ hour

We have to calculate the time that will be needed by MAsha to complete the track:

As we know the speed and remaining distance

Speed=\frac{distance}{time}\\8=\frac{4}{time}\\ time=\frac{4}{8}\\time=0.5\ hours

Masha needs 0.5 hour to complete the track ..

7 0
3 years ago
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Which is a true statement about 7 and 14?
Ksju [112]
7 and 14 can be divided in to two
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3 years ago
To walk to her friend's house, Cristal normally walks 63 yards north and 16 yards east as shown. How many
ANEK [815]

Answer:

65 yd

Step-by-step explanation:

The image of this walking path of Cristal is missing, so i have attached it.

From the image attached, we can see that the path "x" is the hypotenuse path a the triangle.

Thus, we can use pythagoras theorem to find the area. Thus;

x² = 16² + 63²

x = √(16² + 63²)

x = √4225

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A decade is 10 years which means 1/5 is 2 years. thus making 2/5 4 years.

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