Question

The formula R = -0.075t + 3.85 can be used to predict the workd record in the 1500 meterrun, t years after 1930. Inequality that identifies the yrears in which the world record will be less than 3.1 minutes.

Answer 1

t < 11.2 years

Answer 2

Thank you!

Answer 3

Tejas, I checked and the answer seems to be incorrect?

Answer 4

Is R in minutes?

Answer 5

t greater than?

Answer 6

What is the answer given in your book?

Answer 7

Yes, it appears to be ?

Answer 8

It has to be solved in t

Answer 9

Is the answer given in your book?

Answer 10

No answer in the book, doing an exercise

Answer 11

Is there any extra information given which you haven't typed in the question? Like the record time in 1930?

Answer 12

Let me check

Answer 13

t > 10 years. From 1941 onwards, the record time will be less than 3.1 minutes.