hannahkelly1629
01.09.2019 •
Mathematics
Abicycle wheel of radius 42cm is rolled over a distance of 66m. how many revolutions does it make? [take π=22/7]
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Ответ:
So, in one revolution, the bicycle covers
In a distance of 66 m the bicycle makes
25 revolutions
Ответ:
Hope this helps!
Step-by-step explanation:
8*5y*7=2y+4+2498
We move all terms to the left:
8*5y*7-(2y+4+2498)=0
We add all the numbers together, and all the variables
8*5y*7-(2y+2502)=0
Wy multiply elements
280y*7-(2y+2502)=0
We get rid of parentheses
280y*7-2y-2502=0
We add all the numbers together, and all the variables
-2y+280y*7-2502=0
Wy multiply elements
-2y+1960y-2502=0
We add all the numbers together, and all the variables
1958y-2502=0
We move all terms containing y to the left, all other terms to the right
1958y=2502
y=2502/1958
y=1+272/979