Really You Can Just Add It To Get The Answer 48.99 + 7.6 = 56.59
Answer:
225
Step-by-step explanation:
Mary = 3x (3 times Carey)
Carey = x
Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)
3x + x + x/2 = 405
4x + x/2 = 405
8x/2 + x/2 (treat these as fractions) = 405
9x/2 = 405
9x = 810 (cross multiply)
x = 90
Mary = 3(90) 270
Carey = 90
Barry = 90/2 45
Mary - Barry
270 - 45 = 225
Hope this helps! :)
Answer:
$216
Step-by-step explanation:
6% of 1200 = 72
72x3=216
Total students = 375 + 405 = 780
boys % = (375 / 780) *100%
=48.1 %
