exam Maths Puzzle Numerical Ability

2x=-4y -4
3x + 5y=-3

Read Solution (Total 0)

exam Other Question

A 40% antifreeze solution and a 70% antifreeze solution is mixed to make 12 gallons of 50% antifrezze solution. How many gallons of each antifreeze solution should be used. you have $12000 in bank:part in a chequing account earning 1.5%,and the rest in a savings account earning 4.75%.you earn $360 interest in a year.how much is invested in each accoun