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Mathematics 19 Online
OpenStudy (anonymous):

Jeremy is making a cube using blocks. The cube is solid and has no holes. How many cubes did Jeremy use?

OpenStudy (anonymous):

OpenStudy (anonymous):

Please help me

563blackghost (563blackghost):

If we analyze your photo we see that it is a cube...so in order to find the volume of a cube we would do... \(\huge{V=a^{3}}\) Where \(\large{a}\) is the side length... So what is the side length?

OpenStudy (anonymous):

I don't know so can you help me

563blackghost (563blackghost):

Count the faces length...

OpenStudy (anonymous):

tell me the answer please

563blackghost (563blackghost):

Im sorry but I am not allowed to and I think its best to help you instead of giving the answer away

OpenStudy (anonymous):

25

OpenStudy (ravenqueen):

25 x 5 = ?

563blackghost (563blackghost):

That is correct the face does have the area of \(\large{25}\) so the length is \(\large{5}\)....So input... \(\huge{V=5^{3}}\) what would the answer be?

OpenStudy (anonymous):

125

563blackghost (563blackghost):

Correct ^^

OpenStudy (ravenqueen):

you got it!

OpenStudy (anonymous):

OpenStudy (anonymous):

563blackghost (563blackghost):

\(\Huge{\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}\color{orange}{\bigstar}\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}\color{orange}{\bigstar}\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}}\\\color{white}{.}\\\Huge\sf\color{blue}{~~~~Welcome~to~OpenStudy!~\ddot\smile}\\\color{white}{.}\\\\\Huge{\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}\color{orange}{\bigstar}\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}\color{orange}{\bigstar}\color{red}{\bigstar}\color{blue}{\bigstar}\color{green}{\bigstar}\color{yellow}{\bigstar}}\) Welcome to Openstudy! And I hope you will enjoy this helpful site! ^^ Please check out the code of conduct to learn the rules of this site xD http://openstudy.com/code-of-conduct

563blackghost (563blackghost):

For the first one first determine the length and height of the rectangular face...

OpenStudy (anonymous):

the answer is 48 right

563blackghost (563blackghost):

Correct ^^

OpenStudy (anonymous):

563blackghost (563blackghost):

First determine the length of the water...so we would count the units...

OpenStudy (ravenqueen):

Length x width then multiply the answer by 6.

563blackghost (563blackghost):

You would use the equation.. \(\huge{V=l\times w\times h}\) Where \(\large{l}\) would be the length of the water, \(\large{w}\) would be the same as the length and \(\large{h}\) would be the height of the ruler since the box is equal to the ruler's height...

OpenStudy (anonymous):

120

OpenStudy (ravenqueen):

Yep

563blackghost (563blackghost):

Actually yea..

OpenStudy (anonymous):

OpenStudy (anonymous):

about 140 right

563blackghost (563blackghost):

Use the same equation... \(\huge{V=l \times w \times h}\) \(\large{l}\) would be the length of the face which is \(\large{7}\) \(\large{w}\) would be the side length which is \(\large{3}\) \(\large{h}\) would be the height of the front face which is \(\large{5}\) Now that we know this we input... \(\huge\color{purple}{V=7 \times 3 \times 5}\)

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