mkidgellmas1284
07.11.2020 •
Mathematics
A bag contains x yellow balls, 2x + 1 green balls and 3x + 2 black balls. There are 39 balls in the bag. Find the numbers of yellow, green and black balls in the bag
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Ответ:
no. of yellow balls = x = 6
no. of green balls= 2x+1= 2×6+1= 13
no of black balls= 3x+2= 3×6+2= 20
Step-by-step explanation:
we can write it as
x+ 2x+1 + 3x+ 2 = 39
6x+3=39
6x=39-3
6x= 36
x= 36/6
x= 6
no. of yellow balls = x = 6
no. of green balls= 2x+1= 2×6+1= 13
no of black balls= 3x+2= 3×6+2= 20
Ответ:
0.00023*1000=0.23. Hope this helped! Also, dividing is the same, you just move it to the left.