exam Maths Puzzle Numerical Ability

How do I rewrite each equation as a function of x.

-3x + 4y = 11

Read Solution (Total 0)

exam Other Question

3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee? One share of A stock is worth 3 1/2 shares of B stock. If the total value of the stock is $9000, how much was invested in each company?