(a) A formula expresses a rule in algebraic terms. For example, A = / x w where A = area, / = length and w = width. (b) To use algebraic equations to solve word problems Step 1 Represent the unknown variable by a letter, such as x. Step 2anbsp;...
|Title||:||Math Insights Tb S1a S/e|
|Author||:||Yet Sum Yang|
|Publisher||:||Pearson Education South Asia - 2007|