Question

The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.4 minutes.
t>?

Answer 1

6

Answer 2

-.075t + 3.85 < 3.4
-75t + 3850 < 3400
-75t < -450
t > 6

Answer 3

Thank you

Answer 4

This translates to {Y|Y > ?}

Answer 5

{t|t > 6}

Answer 6

Got it. thanks