The bus drives 66 km at an average speed of 24 km/h. How long does the journey take?

2.75 hours

Step-by-step explanation:

Speed is 24km per hour (), and the bus covered 66km.

We need to get a value of km with the rate (24/1) and distance (66) given.

We get:  .  

The km cancel out, leaving us with 66/24 hours, or 2.75 hours.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6