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harina [27]
2 years ago
7

Mike wants to find the volume of 4 basketballs. If each basketball has a radius of 4.5

Mathematics
1 answer:
Oksana_A [137]2 years ago
8 0
The answer is 25 i think
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The Cunninghams are moving across the country. Mr. Cunningham leaves 3 hours before Mrs. Cunningham. If he averages 40mph and sh
svp [43]
Recall your d = rt, distance = rate * time

now, if say, by the time they meet, Mr Cunningham has travelled "d" miles, that means Mrs Cunningham must also had travelled "d" miles as well.

However, he left 3 hours earlier, so by the time he travelled "d" miles, and took say "t" hours, for her it took 3 hour less, because she started driving 3 hours later, so, she's been on the road 3 hours less than Mr Cunningham, so by the time they meet, Mrs Cunningham has travelled then "t - 3" hours.

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{Mr Cunningham}&d&40&t\\
\textit{Mrs Cunningham}&d&80&t-3
\end{array}
\\\\\\
\begin{cases}
\boxed{d}=40t\\
d=80(t-3)\\
----------\\
\boxed{40t}=80(t-3)
\end{cases}
\\\\\\
\cfrac{40t}{80}=t-3\implies \cfrac{t}{2}=t-3\implies t=2t-6\implies 6=2t-t
\\\\\\
6=t
5 0
3 years ago
A square base a side length of x+3. What is its area
zepelin [54]
Well it would be (x+3)(x+3)
using the FOIL method you end up with:
x^2 + 6x + 9

:D
6 0
3 years ago
Gracie plans to buy a new pair of shoes for $75.00, however, the manager sells them to her for
Cerrena [4.2K]
15% reason 75 minus 60=15
6 0
2 years ago
What is the volume of the cone?<br> Cone v = BA<br> 10 cm<br> 0<br> 0<br> 7 cm<br> 0<br> 0
Drupady [299]
If you could Explain more
4 0
2 years ago
15 one half subtracted by 3 wholes and seventh eights
FromTheMoon [43]
15 and one half is 31/2. 3 and seven eighths is 31/8. 31/2 also equals 124/8. Then the answer is 124/8 - 31/8 is 91/8. Hope that helped.
6 0
3 years ago
Read 2 more answers
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