Solve the problem.
-A local race for charity has taken place since 1993. Using the actual speeds of the winners from 1993 through 1998, mathematicians obtained the formula y = 0.19x + 5, in which x represents the number of years after 1993 And y represents the winning speed in miles per hour. In what year is the winning speed predicted to be 7.28 Mph?
A)2006
B)2004
C)2007
D)2005

Question

Quizplus · Accepted Answer

To find the year when the winning speed is predicted to be 7.28 mph, we substitute y = 7.28 in the given formula and solve for x:7.28 = 0.19x + 5Subtract 5 from both sides:2.28 = 0.19xDivide by 0.19:x = 2.28 / 0.19 = 12Since x represents the number of years after 1993, we add 12 to 1993 to find the year:1993 + 12 = 2005

Solve the Problem. -A Local Race for Charity Has Taken Place Since 1993