Dale is on the Internet 12 hours a day. He spends 75% of that time sending messages. He spends the rest of the time playing games. How many hours does Dale play games on the Internet each day?

Dale spends 12 hours on the internet, 75% on messages and 25% on games.

To make this easier, we can just convert the percentages into fractions and then continue.

To turn a percentage into a fraction, take the percentage number and put it into the numeriator, and add 100 to the denominator.

75% = 75/100  

25% = 25/100

Simplify!

75% = 75/100 = 3/4

25% = 25/100 = 1/4

So, now we know how to convert the percentages into a fraction. Now! We must use the fractions to find out how to find the time he uses to play games.

We know now that he spends 1/4 of his time working on games, and 3/4 of his 12 hours working on messages. However, we want to know how much 1/4 is. Divide 12 by the denominator, 4, and this will determine how long 1/4 is.

12 / 4 = 3  

So, that means that of his 12 hours he spends on the internet, he spends 3 hours doing games.

Now, subtract the time he spends doing the games by the time he spends on the internet to find the time on he spends messaging.

12 - 3 = 9

Which means that:

9 = Hours Spent Doing Messaging

3 = Hours Spent Playing Games

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

they used 313 gallons of paint