A train travels 70 in 1/10 second. At this same speed, how many feet will it travel 3 1/2 seconds?
70/.1 = x/3.5
.1x = 245
x = 2450 inches
= 204.2 ft
I read that as "A train travels 70 inches in 1/10 seconds" , your are missing an "in".
To find out how many feet the train will travel in 3 1/2 seconds, we can use the concept of speed.
First, let's convert the given speed from miles per second to feet per second.
1 mile = 5,280 feet
1 second = 1/10 second
So, the speed of the train is 70 mph = 70 x 5280 feet/hour = 70 x 5280 / 3600 feet/second.
Now, let's calculate the speed of the train in feet per second:
Speed = 70 x 5280 / 3600 = 105.6 feet/second.
Next, we can multiply the speed of the train by the time of 3 1/2 seconds to find the distance traveled:
Distance = Speed x Time
Distance = 105.6 feet/second x 3.5 seconds.
Multiplying these two values, we get:
Distance = 369.6 feet.
Therefore, the train will travel 369.6 feet in 3 1/2 seconds.