Question

16. (i) If a water tank is filled by a pipe at the rate of 40 litres per minute,
how much water will be filled in 25 minutes?
(ii) Solve: 3m + 2 (m + 2) = 20 - (2m -5)
coreal IF 1= 45°​

Answer 1

Answer:

(i)1000 litres

(ii)m=3

Step-by-step explanation:

(i)

Litres filliing up in 1 minute = 40 litres

Water that will be filled in 25 minutes = 40×25 = 1000 litre

(ii)

3m+2(m+2)=20-(2m-5)

3m+2m+4=20-2m+5

5m+4=25-2m

5m+2m=25-4

7m=21

m=21/7

m=3