The percent of change will be a percentage increase because we go from a smaller number to a larger number. To find a percentage increase, we will use the percentage increase formula:
% increase = final value - original value / original value x 100
Substituting the values in:
% increase = (8,200) - (7,500) / 7,500 x 100, where 8,200 is the new value and 7,500 is the original value.
Simplification after multiplication: 700 / 7,500 x 100
Simplification after division: 0.093 x 100
Simplification after multiplication of 100: 9.333%.
A + b = 13 22 a + 18 b = 258 ------------------------ a = 13 - b 22 * ( 13 - b ) + 18 b = 258 286 - 22 b + 18 b = 258 - 4 b = 258 - 286 - 4 b = - 28 b = ( - 28 ) : ( - 8 ) = 7 a = 13 - 7 = 6 Answer: 6 tour packages a and 7 tour packages b were sold.
