Hey there! :D
Make an algebraic expression.
Let the 'number' equal x.
4x-24= 60
Add 24 on both sides.
4x= 84
Divide both sides by 4.
x=21
The number is 21.
I hope this helps!
~kaikers
Answer:

For further explanation see the picture attached...
178-35=143
143/5= 28.6
he paid $28.6 every month
The ratio of the number of minutes he lifter weights tot the total minutes he worked out is 25: 50. Simplified, the ratio would be 1:2