a tour bus normally leaves for the destination at 5 p. m. for a 270 mile trip this week however the bus leaves at 5: 30 p. m. to arrive on time the bus driver Drive 6 miles per hour faster than usual what is the buses usual speed

Direct variation means when one quantity is increased the other also increases or when one quantity is decreased the other also decreases.

Therefore as the variable x is decreased to 2 the variable y is also decreased to 26.

Indirect variation means when one quantity is increased the other decreases or when one quantity is decreased the other is increased.

The variations can be solved by unitary method or cross product method

The crossproduct method employs the numbers directly .

x: y

3:39

2: k

Here k is the unknown quantity.

Using the cross product rule

3 × k= 2× 39

k= 78/3= 26

The missing value of k is found to be 26.

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y = 26

The equation for direct variation is y = kx ← k is the constant of variation

to find k use the condition y = 39 when x = 3

k = = = 13

equation is y = 13x

when x = 2 then y = 13 × 2 = 26

There are nine fourth in 2 1/4.

Here,

Mixed fraction is given as;

⇒

We have to find the number of fourth in  

What is Mixed fraction?

A fraction which represents with its quotient and remainder is called Mixed fraction.

Now,

Mixed fraction is given as;

⇒

To solve mixed fraction we get;

Hence, There are 9 fourth in  .

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