Question

Jessica's fish tank has 19 liters of water in it. she plans to add 5 liters per minute until the tank has more than 59 liters. what are the possible numbers of

minutes jessica could add water?
use t for the number of minutes.
write your answer as an inequality solved for t.

Answer 1

19+5t>59

5t>59-19

5t>40

t>8

Answer 2

8 minutes.

Explanation:

Using ' t ' for the number of minutes.

" 59 > 19 + 5t "

→ Solve for t...

= 59 > 19 + 5t

= 59 - 19 > 5x

= 40 > 5t

= 40/5 > t

= 8 > t

Thus, It will take 8 minutes to add 59 litres of water.