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amid [387]
3 years ago
15

I need help with these 3 problems

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
6 0
52) 115-3=112 that were given away
Now divide 112 by each, seeing if they give you a non mixed number.
The only one that would give you a full number would be 28. So there are 28 kids in his class.
54) 19-4=15
Now double 15 since he sold half, so he started with 30 stamps originally. 
56) 500-2*=324
-2*=-176
age=88



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0.4 divided by 0.08 show your work
Sergeeva-Olga [200]

Answer:

5

Step-by-step explanation:

Since we have not instructed to follow any kind of rule dividing, we can write in any form. Let's calculate it using fraction

0.4:0.08=\frac{0.4}{0.08}

We can multiply both the nominator and denominator with 100

\frac{0.4}{0.08}=\frac{40}{8}=5

The answer is 5.


We can also solve it as a division of fractions:

\frac{4}{10} : \frac{8}{100} = \frac{4}{10} * \frac{100}{8} = \frac{10}{2} = 5

8 0
3 years ago
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stich3 [128]
Answer is A
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3 years ago
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Alex Ar [27]
Square root 144 =  12 so this is the rational number
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vitfil [10]

Answer:

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3 0
3 years ago
Given a soda can with a volume of 15 and a diameter of 2, what is the volume of a cone that fits perfectly inside the soda can?
Naddika [18.5K]
Check the picture below.

so, a cone, that fits inside the cylinder, will have the same height "h" and radius "r".  Thus


\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad \boxed{\pi r^2 h}=15
\\\\\\
\textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}\implies V=\cfrac{\boxed{15}}{3}

8 0
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