exam Maths Puzzle Numerical Ability

x+2y=10

4x+5y=31

i need to kno what x and y equal..
I dont understand HOW to do this..

Read Solution (Total 0)

exam Other Question

the question is in three parts. Write a function that shows how much profit a company makes for a catering event on sandwiches that are made for .85 and sold for 2.00. Then show if sin x= 4/5, where 0