Grade 9 math help!

Question

During a ski jump,  Maiko is airborne for 8.1s. If her speed during the jump is 27.6m/s, How far did Maiko jump, to the nearest hundredth of a meter?

 

(We are currently learning about solving Linear equations, if that helps at all.) 

Answer 1

Hi Megan;

distance=(rate)(time)

distance=(27.6 meters/second)(8.1 seconds)

The unit of seconds is in the numerator and denominator.  Therefore, these cancel...

distance=(27.6 meters/second)(8.1 seconds)

distance=(27.6 meters)(8.1)

Now that the units are aligned, we may calculate.

distance=223.56 meters

Answer 2

Distance = Speed * Time

 

D = (27.6 m/s) * (8.1s)

D = (27.6 * 8.1) * (m*s/s)

D = 223.56 m