Selling price = cost + 0.42*cost = 1.42*cost
cost = selling price/1.42
cost = $9182/1.42 ≈ $6466.20
x= 522-7+10+14
×=539
Pete had 539 points after the three games
3/5x + 5 = 4/5
3/5x + 5 (-5) = 4/5 (-5)
3/5x = -4 1/5
3/5x/(5/3) = -4 1/5(/)(5/3)
x = (- 21/5)/ (5/3)
x = -21/5 x (3/5) (flip the signs by flipping the second fraction and the divide to a multiply)
x = -21/5 x 3/5
x = -63/25 or x = - 2.52
hope this helps
