abbeygrace13
21.08.2019 •
Mathematics
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Ответ:
Multiply each side by 2: 2A = h(b1 + b2)
Divide each side by 'h' : 2A/h = b1 + b2
Subtract b2 from each side: b1 = 2A/h - b2
Ответ:
x/y is 9/45=1/5
so when x=2, y=5*2=10