Yvie sells cupcakes and doughnuts at her market stall. Everyday she makes sure that she has the total stock of cupcakes and doughnuts in the ratio 3:5 respectively. On a particular Saturday, she takes 105
cupcakes to the market stall, how many doughnuts does she take?

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building

Determine if the equation defines y as a function of x: 2xy = 1. yes o no