3 years ago

The average basketball has a diameter of 9.5 inches. What is the volume of an average basketball?

Mathematics

1 answer:

Elodia [21]3 years ago

6 0

the formula for volume of sphere is 4/3||r^3

diameter=2radius

in the formula we need to have radius but we have been given diameter so we convert diameter to radius

d=2r

r=d/2

9.5÷2

4.75

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Steve had 7 more than twice as many quarters as dimes. if the total value of her coins was $10.15, how many of each kind of coin

NemiM [27]

X=quarters, y=dimes
7+2x=y
0.25x+0.1y=10.15
we substitute the first equation into the second equation
0.25x+0.1(7+2x)=10.15
0.25x+0.7+0.2x=10.15
0.45x+0.7-0.7=10.15-0.7
0.45x=9.45
0.45x/0.45=9.45/0.45
x=21 quarters
7+2x=y, x=21
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7+42=y
y=49 dimes
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3 years ago

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Rashid [163]

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4 * x - 4 - 3 * x > 13 - 7 * x - 1 + 8
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8 * x > 24 /8
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3 years ago

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allsm [11]

Ask me your other questions.i hope it was helpful