Question

решите пропорцию
а x/2=3/7 b) x/3=2/5 b) x/12=7/10 g) x/16=9/32

Answer 1

 x/2=3/7    х = 2 *3 / 7 = 6/7
x/3=2/5     х = 3 * 2 / 5 = 6/5 = 1 1/5
x/12=7/10   х = 12 * 7 / 10 =  8  4/10 = 8  2/5
 x/16=9/32   х = 16 * 9 / 32 = 9/2 = 4  1/2