Question

the temperature of a liquid was recorded at -17 F. If the temperature decreases by 3 every minute, find the temperature of the liquid 15 minutes later

Answer 1

The temperature of the liquid 15 minutes later is
`-59^0F`

Explanation:

This is an example of arithmetic progression

We need to find 15 th term

Here

`a=-17F\\\\d=-3F\\\\t_(15)=-17+(15-1)*-3\\\\=-17-42\\\\=-59^0F`