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3 years ago

A train covers 165 km in 1.5 hours. Find the constant variation.

Mathematics

2 answers:

sdas [7]3 years ago

6 0

Answer:

110

Step-by-step explanation:

To find the constant of variation, divide the number of km by the number of hours:

165/1.5

= 110

This means that the speed of the train is 110 km per hour.

So, the constant of variation is 110.

AfilCa [17]3 years ago

3 0

Answer:

Step-by-step explanation:

110

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Cynthia had a credit card with a 17% APR and a $3,265 balance. She had budgeted to have the credit card paid off in 24 months. B

monitta

Answer:

Cynthia will have to pay $152.16 extra in finance charges.

Step-by-step explanation:

Cynthia had a credit card with a 17% APR and a $3,265 balance.

Cynthia’s credit card company has increased her interest rate to 21%.

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Second when p = p = 3265 r = 21% and n = 24

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$\frac{3265\times0.014166\times(1+0.014166)^{24}}{(1+0.014166)^{24}-1}$

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EMI = $161.43

Scenario 2:

r = $21/12/100=0.0175$

Putting the values in formula we get;

$\frac{3265\times0.0175\times(1+0.0175)^{24}}{(1+0.0175)^{24}-1}$

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3 years ago

Evaluate.<br><br><br><br> 2 • {[5 • (60 – 14 ÷ 7)] + 25} • 5

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The answer is 3150 :)
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3 years ago

Maria skates 40 feet due south in a skating rink. Then she skates 60 feet due east. Maria then skates diagonally across the ring

Viktor [21]

Answer:

172 ft

Step-by-step explanation:

Due south and due east form a 90-degree angle.

Her path is a right triangle. The 60 ft and 40 ft distances are the legs of the right triangle. We can use the Pythagorean theorem to find the hypotenuse. Then we add the lengths of the three sides to find the total distance she traveled which is the perimeter of the right triangle.

a^2 + b^2 = c^2

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