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3 years ago

A car travels a distance of d km in t hours. The formula that

Mathematics

1 answer:

V125BC [204]3 years ago

5 0

Answer:

Direct Variation

Step-by-step explanation:

Given: A car travels at a distance of $d$ km. The formula that relates $d$ to $t$ is $d=kt$

To find: kind of variation

Solution:

The formula that relates $d$ to $t$ is $d=kt$

Here, $k$ is a constant of proportionality.

Constant of proportionality is also called as constant of variation.

$d$ varies directly as $t$ .

Therefore, this is a direct variation.

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Selena is driving to visit her grandmother who lives 325 miles away from Selena home. she travels an average of 60 miles per hou

GalinKa [24]

Answer:

Step-by-step explanation:

independent quantity=60 m/h

dependent =time taken=t

60 t=325

t=325/60=65/12=5 5/12 hours

4 0

3 years ago

Joseph wants to buy a new tennis

ludmilkaskok [199]

Answer:

The shop made a profit about $40.

Step-by-step explanation:

Now, According to the question We know that :

The shop marked the $200 price up by 60%.

60% of $200 is = $120.

Now, the price is = $320 because, 200 + 120 = 320.

Joseph bought the tennis racket at 25% off.

25% of $320 is = $80.

Now, the discount price is = $240 Because, 320 - 80 = 240.

So, Joseph bought the racket for = $240.

Now we know that the original price from the factory was $200.

Joseph bought it for $240.

So, the shop made a profit of $40.

8 0

3 years ago

paris run 3 1/2 laps around the circular track in the school gym. The track has a diameter of 1/2 mile. About how far does paris

fiasKO [112]

Answer:

5.497787144 miles

Step-by-step explanation:

Remember that circumference of a circle can be calculated with:

$2\pi r$

r=radius

We also know that the radius is just a half of the diameter.

So, the radius of the track is (1/2)/2=1/4 miles

Now, use the circumference of a circle formula to find how much she runs in 1 lap.

$2\pi (\frac{1}{4} )$

Simplify

$\frac{\pi }{2}$

This is how much she runs in 1 lap.

Multiply by 3.5 for 3 and a half laps.

$\frac{\pi }{2}*3.5$

The answer is around 5.497787144 miles.

7 0

4 years ago

O curso de inglês de Carolina teve duração de 4 semestres e 2 meses . quantos tempo durou esse curso de Carolina ?

Afina-wow [57]

Answer:

a 26 meses gracias por los puntos

5 0

3 years ago

Cuál es el valor que tiene x

salantis [7]

Answer:

I might be wrong double check but it's something like

Step-by-step explanation:

4x/3-40/3

(not to sure on that so don't be mad if it's wrong)

6 0

3 years ago