1.
A = 150*0.8 = 120
B = 240*0.6 = 144
B-A = 144-120 = 24
2.
Дано:
A-B = 52
A = 9*B
Решение:
1)9B - B = 52
8B = 52
B = 6.5
2) A = 9*B = 9*6.5= 58.5
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Answers & Comments
1.
A = 150*0.8 = 120
B = 240*0.6 = 144
B-A = 144-120 = 24
2.
Дано:
A-B = 52
A = 9*B
Решение:
1)9B - B = 52
8B = 52
B = 6.5
2) A = 9*B = 9*6.5= 58.5