Answered

A teacher digs 5 m in 4 hours. How long will it take it to dig 30 m ?
Number Sentence?

Sagot :

Phamviz
5m/4hrs.= 30m/n=(cross multiple)5n=120 (divide both sides into 5 t eliminate the numerical coefficient of n,so that we would be able to find the value of n.) the result is 25.
Syannmeviz
5m= 4hrs, 30m= n
30/4= 7.5

30m= 7.5 hours