How far would it travel in 11 hours? First, we have to find how much the train travels in 1 hour. We are finding the unit rate. So, divide 720 by 9 and we get 80. The train travels 80 km in one hour. We have to find how much it travels in 11 hours. We multiply 80 by 11 and we get 880. <u>The train would travel 880 km in 11 hours.</u>
How long would it take the train to travel 1,120 km? Since we know that the train can travel 80 km per hour , we can divide 1,120 by 80. When we divide we get 14. <u>The train would travel 1,120 km in 14 hours.</u>
When the value of something decreases by a certain factor every unit of time, instead of by a set constant, then this is called exponential decay. When the rate is constant, this is called linear decay. Hope this helps!
