She had 80 dollars at first.80/80 equals to 8/8 and that equals to 64 dollars. 5/8 equals to 45
Solve the equation for x by finding a, b and c of the quadratic then applying the quadratic formula
Answer:
216
Step-by-step explanation:
300 x .28 = 84
300 - 84 = 216
Answer:
x = 9/2 or x= 4.5
Step-by-step explanation:
you factor out the equation:
5x-15=3x-6
+15 +15
5x=3x+9
-3x -3x
2x=9
x=9/2 or 4.5
