Х : 7 1/3 = 6 : 1,1
х : 7 1/3 = 6/1 : 11/10 = 6/1 * 10/11 = 60/11
х = 60/11 * 7 1/3 = 60/11 * 22/3 = 20/1 * 2/1 = 40
х : 3,5 = 2,4 : 0,8
х : 3 5/10 = 2 4/10 : 8/10 = 24/10 * 10/8 = 3
х = 3 * 3 5/10 = 3/1 * 35/10 = 105/10 = 10 5/10 = 10 1/2 = 10,5
4,5 : х = 12,5 : 4
4 5/10 : х = 12 5/10 : 4/1 = 125/10 * 1/4 = 125/40
х = 4 5/10 : 125/40 = 45/10 * 40/125 = 9/1 * 4/25 = 36/25 = 1 11/25 = 1,44
<span>1)Разделите
делимое и делитель 800:160:на 10,затем на 2,на 4,на 8.
1)</span><span><span><span> 800:160=5
</span> 2) 800:10=80
3) 800:2=400
4) 800:4=200
5) 800:8=100
</span>2)Разделите
делмое и делитель 128000:64000: на 1000, затем на 2,на 8.
</span>
1) <span><span>128000:64000=2
</span> 2) 128000:1000=128
3) 128000:2=64000
4) 128000:8=16000</span>
Log₅5*log₄₉125=1,5
1. log₄₉125=log_(₇²) 125=(1/2)*log₇125=(1/2)*log₇5³=(1/2)*3*log₇5=
=(3/2)*(log₅5/log₅7)=(3/2)*(1/log₅7)=1,5/log₅7
2. log₅5*1,5/log₅7=1,5