A runner takes 20 seconds to run 100 meters. How long to run 25 meters?
(Ex. 25/100 = 20/?)
You've misstated the ratio.
20/100 = x/25
Cross multiply and solve for x
100x = 500
x = 500/100
x = 5
oh thank you!!
You're welcome.
To find out how long it would take to run 25 meters, we can set up a proportion using the given information.
Let's set up the proportion:
25/100 = x/20
To solve for x (the time it would take to run 25 meters), we can cross-multiply and solve for x:
25 * 20 = 100 * x
500 = 100x
Next, divide both sides by 100 to solve for x:
500/100 = x
5 = x
Therefore, it would take 5 seconds to run 25 meters.