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expeople1 [14]
3 years ago
9

A train travels a total of 38 km at a constant speed of 90 km/h. How long is its journey? Give your answer in minutes and second

s, to the nearest second.
I WILL GIVE BRAINLIEST TO BEST ANSWER
Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

3420 minutes 205,200 second.

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HELPPP!!!!!!
Furkat [3]
<h3>Answer: Choice D)  31.2 miles</h3>

This value is approximate.

============================================================

Explanation:

Let's focus on the 48 degree angle. This angle combines with angle ABC to form a 90 degree angle. This means angle ABC is 90-48 = 42 degrees. Or in short we can say angle B = 42 when focusing on triangle ABC.

Now let's move to the 17 degree angle. Add on the 90 degree angle and we can see that angle CAB, aka angle A, is 17+90 = 107 degrees.

Based on those two interior angles, angle C must be...

A+B+C = 180

107+42+C = 180

149+C = 180

C = 180-149

C = 31

----------------

To sum things up so far, we have these known properties of triangle ABC

  • angle A = 107 degrees
  • side c = side AB = 24 miles
  • angle B = 42 degrees
  • angle C = 31 degrees

Let's use the law of sines to find side b, which is opposite angle B. This will find the length of side AC (which is the distance from the storm to station A).

b/sin(B) = c/sin(C)

b/sin(42) = 24/sin(31)

b = sin(42)*24/sin(31)

b = 31.1804803080182 which is approximate

b = 31.2 miles is the distance from the storm to station A

Make sure your calculator is in degree mode.

8 0
3 years ago
Last saturday, marissa walked her dog 1 1/2 miles. Sally walked her dog 2 times far. How many miles total did both girls walk th
andriy [413]

Answer:

4.5 miles

Step-by-step explanation:

7 0
3 years ago
Please help give brainliest
natita [175]

Answer:

Step-by-step explanation:

-4,5

6 0
1 year ago
Read 2 more answers
55.8 is 62% of what number
8_murik_8 [283]
All you have to do is multiply 55.8 by .62 to get the answer which is 34.596 but I rounded up it to 34.60
7 0
3 years ago
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Please answer this quickly ​
PtichkaEL [24]

Answer:

26.85in

Step-by-step explanation

7 plus 7 plus plus 5 equals 19 plus the semi circle of 7.85

4 0
3 years ago
Read 2 more answers
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