7/8c +23/24 I think this is right dont use me as the only source tho
3/4 is the ratio of woodwinds to to brass players
(5,-5)(8,-8)
slope = (-8 - (-5) / (8 - 5) = (-8 + 5) / 3 = -3/3 = -1 <==
Let A represent the speed of car A. Using your formula,
.. A*2 = D
.. (A +15)*1.5 = D . . . . . the same distance in a shorter time at a higher speed
Equating the two expressions for D, we get
.. 2A = 1.5(A +15)
.. 2A = 1.5A +22.5 . . . . . eliminate parentheses
.. 0.5A = 22.5 . . . . . . . . .subtract 1.5A
.. A = 22.5/0.5 = 45 . . . .divide by 0.5
Car B was 15 mph faster than this.
Car B traveled at 60 miles per hour.
