Question

4 men and 4 women can finish a piece of work jointly in 3 days while 2 men and 5 women can finish the same work jointly in 4 days. Find the time taken by one man alone and that of one woman alone to finish the same work by using matrix inversion method

Answer 1

Answer:

an equals sign "=" like this:

x + 2 = 6

That equations says: what is on the left (x + 2) is equal to what is on the right (6)

So an equation is like a statement "this equals that"

(Note: this equation has the solution x=4, read how to solve equations.

What is a Formula?

A formula is a fact or rule that uses mathematical symbols.

It will usually have:

an equals sign (=)

two or more variables (x, y, etc) that stand in for values we don't know yet

It shows us how things are related to each other.

Example: The formula for finding the volume of a box is:

V = lwh

V stands for volume, l for