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2 years ago

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ?

Mathematics

1 answer:

jekas [21]2 years ago

6 0

<h3><u>Answer :- </u></h3>

168 km ...

<h3><u>Explanation :- </u></h3>

It is given that the car travels 14km in 25 minutes..

Now , assume that the distance the car travel in 5 hours be x..

Since 1 hour = 60 minutes..
5 hours = 300 minutes ..

• Thus , The two given statements are :-

14km -----------------> 25 minutes..
And, x km -------------> 300 minutes..

The distance travelled by car and the time taken by the car is directly proportional to each other....

$\frac{14}{25} = \frac{x}{300}$

$= x = 168km$

• Hence , Car can travel 168km in 5 hours ..

Hope this helps you :)

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luda_lava [24]

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<h3>hello there!</h3>

$\left|5\right|+\left|-7\right|$

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$\mathrm{Apply\:absolute\:rule}:\quad \left|-a\right|=a$

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3 years ago

Please help!! With step by step

Sever21 [200]

Answer:

$R=\$145.12$

Step-by-step explanation:

<u>Compound Interest</u>

This is a well-know problem were we want to calculate the regular payment R needed to pay a principal P in n periods with a known rate of interest i.

The present value PV or the principal can be calculated with

$P=F_a\cdot R$

Solving for R

$\displaystyle R=\frac{P}{F_a}$

Where Fa is computed by

$\displaystyle F_a=\frac{1-(1+i)^{-n}}{i}$

We'll use the provided values but we need to convert them first to monthly payments

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4 0

3 years ago

6.) the following function represents the profit P(n) in dollars that a concert promoter makes by selling tickets for n dollars

marissa [1.9K]

For Part A, what to do first is to equate the given equation to zero in order to find your x intercepts (zeroes)

0=-250n^2+3,250n-9,000 after factoring out, we get

-250(n-4)(n-9) and these are your zero values.

For Part B, you need to square the function from the general equation Ax^2+Bx+C=0. So to do that, we use the equated form of the equation 0=-250n^2+3,250n-9,000 and in order to have a positive value of 250n^2, we divide both sides by -1

250n^2-3,250n+9,000=0

to simplify, we divide it by 250 to get n^2-13n+36=0 or n^2-13n = -36 (this form is easier in order to complete the square, ax^2+bx=c)

in squaring, we need to apply <span><span><span>(<span>b/2</span>)^2 to both sides where our b is -13 so,
(-13/2)^2 is 169/4

so the equation now becomes n^2-13n+169/4 = 25/4 or to simplify, we apply the concept of a perfect square binomial, so the equation turns out like this

(n-13/2)^2 = 25/4 then to find the value of n, we apply the square root to both sides to obtain n-13/2 = 5/2 and n is 9. This gives us the confirmation from Part A.

For Part C, since the function is a binomial so the graph is a parabola. The axis of symmetry would be x=5.

</span></span></span>

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3 years ago

What is the equation for a long passing through the points (-2,-2) and (2,-4)

MariettaO [177]

Answer:

y = -1/2x + -3

Step-by-step explanation:

it would take too long to explain

i'm 99.99% sure this is right

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3 years ago

PLEASE HELP What is the x value??

Mrrafil [7]

Answer:

Step-by-step explanation:

21^2-19^2=80

sqaure root of 80 to the nearest 10th is

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3 years ago

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ? ​

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ?