" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Mapel : MatematikaKelas : IX SMP
Bab : Statistika
Pembahasan :
x/28 = 80
x = 2240
(x + 3B + B)/(28 + 2) = 78
(2240 + 4B)/30 = 78
2240 + 4B = 2340
4B = 100
B = 25
A = 3B
A = 3(25)
A = 75
Selisih nilai A - B = 75 - 25 = 50
Verified answer
78 = (28×80)+3B+B/(28+2)78 =(2240+4B)/30
2240 + 4B = 78 × 30
2240 + 4B = 2340
4B = 2340 - 2240
4B = 100
B = 100/4
B = 25
A = 3B
A = 3 × 25
A = 75
Selisih = A - B
Selisih = 75 - 25
Selish = 50
Jadi selisih antara nilai A dan B adalah 50