Уравнения: а) 2_1/3 r = 4_1/2*1_1/9 2_1/3 r = 9/2*10/9 2_1/3 r = 5 r = 5:2_1/3=5*3/7=15/7 r = 2_1/7 б) 8_1/2 m = 3_2/3*1_1/11 8_1/2 m = 8/3*12/11=32/11 8_1/2 m = 32/11 m = 32/11:8_1/2=32/11*2/17=64/187 m = 64/187 в) у:4/5=3_1/8:1_1/4 у:4/5=25/8*4/5=5/2 у=5/2*4/5=2 у=2 г) z:3/14=3_1/9:4/9 z:3/14=28/9*9/4 z:3/14=7 z=7*3/14 z=3/2=1_1/2=1,5 z=1,5 Не за что!!!!
Answers & Comments
2,04*0,8=1,632
0,6*2,72=1,632
Пропорция ВЕРНА
б) 0,0112*0,51=0,005712
0,28*0,204=0,05712
Пропорция НЕВЕРНА
Уравнения:
а) 2_1/3 r = 4_1/2*1_1/9
2_1/3 r = 9/2*10/9
2_1/3 r = 5
r = 5:2_1/3=5*3/7=15/7
r = 2_1/7
б) 8_1/2 m = 3_2/3*1_1/11
8_1/2 m = 8/3*12/11=32/11
8_1/2 m = 32/11
m = 32/11:8_1/2=32/11*2/17=64/187
m = 64/187
в) у:4/5=3_1/8:1_1/4
у:4/5=25/8*4/5=5/2
у=5/2*4/5=2
у=2
г) z:3/14=3_1/9:4/9
z:3/14=28/9*9/4
z:3/14=7
z=7*3/14
z=3/2=1_1/2=1,5
z=1,5
Не за что!!!!