Answer:
900
Step-by-step explanation:
its easy
The number of blue balls that are needed to balance four green, two yellow and two white balls is 16 blue balls.
<h3>Numbers of blue balls needed</h3>
Green(g)
Blue (b)
Yellow (y)
White (w)
First step is to formula an equation
3g=6b
g=2b
2y=5b
y=5/2b
4w=6b
w=3/2b
Second step is to substitute
4g+2y+2w
=4(2b)+2(5/2b)+2(3/2b)
=8b+5b+3b
=16b
Therefore 16 blue balls are needed.
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Percent means parts out of 100
15%=15/100
'of' means mutily
15% of 60=15/100 times 60=900/100=90/10=9/1=9
easy way is
15%=10%+5%
10% of 60=6
5%=1/2 of 10%
10%=6, 1/2 of 6=3
10%+5%=6+3=9
answer is still 9
Step-by-step explanation:
We need to know the cost of the bodyboard in question...