What is algebra useful for in real life?

1 Answer
Jul 14, 2015

Answer:

Many times when we want to know "how much?" or "how many?" or "how long?", algebra is involved in determining the answer.

Explanation:

Some examples:

If a slice of cake costs #50# cents and a muffin costs #45# cents then is it cheaper to buy five slices of cake or six muffins?

If I drive at an average speed of #35# miles per hour, how long will it take me to go #120# miles?

If a stone dropped from the top of a well takes #3# seconds to reach the bottom, how deep is the well (assuming acceleration due to gravity of #9.8ms^(-2)#)?

If I have a sheet of plywood #1.8m# by #0.6m#, what's the largest volume of box I can construct with each side made from one piece of the plywood?