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3 years ago

I need help on number 2 please

Mathematics

1 answer:

Luba_88 [7]3 years ago

8 0

It is the first one because it has a different pattern from the others

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Nancy bought 570 crayons that came in packs of 15 how many packs of crayons did Nancy buy

Finger [1]

Answer:

The answer to your question is 38 packs

Step-by-step explanation:

Data

570 crayons

packs of 15 crayons each

total number of crayons = ?

Process

To solve this problem just divide the number of crayons by the number of crayons in each pack.

15 570

-45

120

- 120

Conclusion

Nancy bought 38 packs to have 570 crayons.

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3 years ago

What is the volume of a rubber ball that has a radius of 1.7 cm

tino4ka555 [31]

I believe the volume of one rubber ball is 20.58780

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4 years ago

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What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?

Zarrin [17]

The area of a circle is represented by the equation:

$A=\pi r^{2}$

We know that the diameter is two times the radius: $d=2r$

So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:

$24m=2r$ --> $r=12m$

So then we can plug this radius in to the equation for the area of a circle:

$A=\pi (12)^{2}$

$A=144\pi$

We are told to use 3.14 as pi, and not pi itself, so let's plug in 3.14 for pi:

$A=3.14(144)$

$A=452.16m^{2}$

Now we know that the area of this circle is 452.16 square meters.

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3 years ago

find the volume of the smallest right circular cylinder that will hold a sphere whose radius is 4 meters. find the volune of the

Sonja [21]

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}\quad 
\begin{cases}
r=radius\\
------\\
r=4
\end{cases}\implies V=\cfrac{4\pi 4^3}{3}\implies V=\cfrac{256\pi }{3}\\\\
-------------------------------\\\\
\cfrac{sphere}{cylinder}\qquad \cfrac{2}{3}\impliedby ratio~thus\implies \cfrac{2}{3}=\cfrac{\stackrel{sphere}{v}}{\stackrel{cylinder}{v}}
\implies 
\cfrac{2}{3}=\cfrac{\frac{256\pi }{3}}{v}
\\\\\\
v=\cfrac{3\cdot \frac{256\pi }{3}}{2}\implies v=\cfrac{256\pi }{2}\implies v=128\pi$

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4 years ago

What is the answer to question 1 written as an ordered pair? (5, $5.25)

shusha [124]

11.25,5 maybe I dunno

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3 years ago

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