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crimeas [40]
3 years ago
14

Two cars travel the same distance. The first car travels 40 mph and reaches its destination in t hours.

Mathematics
1 answer:
Vesna [10]3 years ago
3 0

Answer:

<em>The first car reaches its destination at 11 hours</em>

Step-by-step explanation:

<u>Distance Traveled </u>

The distance X traveled by and object moving at constant speed is given by:

X=v.t

Where v is the speed and t is the time.

We are given some input data. Two cars travel the same distance, let's call it X. The first car travels at 40 mph and reaches its destination in t hours.

We also know the second car travels at 55 mph and reaches the destination 3 hours earlier. The time used by the second car is t-3 hours

The equation for the distance of the first car is

X=40t

The equation for the distance of the second car is

X=55(t-3)

Both distances are the same, thus

40.t=55(t-3)

Operating:

40t=55t-165

Joining like terms:

15t=165

Solving:

t=165/15

t=11 hours

The first car reaches its destination at 11 hours.

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Answer:

you need to devide the 2 numbers well the 2 fractions bc there mixd numbers well bye it was my pluesure to help you

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Salem Middle School uses 800 pounds of flour each month
Olin [163]
B.16 because 800 divided by 50 is 16
6 0
3 years ago
I need help finding y
denpristay [2]

Answer:

y = 9.8995

Step-by-step explanation:

This question requires the use of basic trigonometry.

In this problem, we know one of the sides and two of the angles.

Since one of the angles is 45 degrees and the sum of all internal angles of a triangle is 180 degrees, the other angle can only be 45 degrees, making this an isosceles triangle - that is, the length of the other leg, x, is also 7.

You could use the soh cah toa mnemonic to figure it out, but here just using the a^2 + b^2 = c^2 should be sufficient since we know both legs of the triangle.

7^2 + 7^2 = 98, and the square root of 98 gives you about 9.8995, which sounds about right for this situation.

Hope this helped!

4 0
3 years ago
On average, Tony the turtle completes a 15-foot course in 1 minute, and Antonio the turtle completes an 18-foot course in 1 minu
marishachu [46]

Answer:

15 feet.

Step-by-step explanation:

Tony's speed = 15 ft/min.

Antonio's = 18 feet /min.

So in 5 minutes Tony travels 5*15 = 75 feet and Antonio travels 5*18 = 90 feet.

So the answer is 90-75 = 15 feet.

8 0
3 years ago
Please help me :3 please explain
Ivahew [28]

Using a proportional relationship, the amounts are given as follows:

  • Tennis 3, Soccer 7.
  • Tennis 36, Soccer 84.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

For this problem, we have that:

  • The input variable is the number of tennis players.
  • The output variable is the number of soccer players.

From the first row of the table, the constant is given as follows:

k = 35/15 = 7/3.

Hence the relationship is:

y = 7/3x.

For the second row of the table, we have that x = 3, hence:

y = 7/3 x 3 = 7.

For the third row of the table, we have that y = 84, hence:

84 = 7/3x

x = 84 x 3/7

x = 36.

Then the amounts are given as follows:

  • Tennis 3, Soccer 7.
  • Tennis 36, Soccer 84.

More can be learned about proportional relationships at brainly.com/question/10424180

#SPJ1

7 0
1 year ago
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