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Mathematics 18 Online
OpenStudy (anonymous):

1. Riley noticed an aquarium in his father’s office. The aquarium had the dimensions 16 in. by 8.5 in. by 10.5 in. The formula for volume is: V = l × w × h. (b) Another aquarium in the building has dimensions that are each triple the size of the aquarium in Riley’s father’s office. Riley thought that the volume would also triple. Is Riley correct? How many times greater is the volume of the larger aquarium than the smaller?

OpenStudy (bohotness):

what do you think and also many means your goign to add

OpenStudy (anonymous):

i dont get the question...

OpenStudy (bohotness):

okay

OpenStudy (bohotness):

lengeth times 2 add width times 2 add height times 2 equals what

OpenStudy (anonymous):

70?

OpenStudy (anonymous):

Are you there?

OpenStudy (anonymous):

@sleepyjess plz help

OpenStudy (anonymous):

someone plz help me...?

OpenStudy (utterly_confuzzled):

Okay, so look at it this way, if you find the volume of the original tank (16x8.5x10.5), you get 1,428. If you take each side and multiply it by 3 and then find the volume (48x25.5x31.5), which is 38,556. Take 38,556 and divide it by the original volume(1,428). Does it give you 3?? Yes or no?? If not, what does it give you?? That should give you both answers

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

thx

OpenStudy (anonymous):

it doesnt give me 3

OpenStudy (anonymous):

and it doesnt answer one of my qustion

OpenStudy (anonymous):

How many times greater is the volume of the larger aquarium than the smaller?

OpenStudy (utterly_confuzzled):

Right, so Riley is not correct. And the number it gave you would be the anser to the second question

OpenStudy (danjs):

Original Volume = L x W x H New Volume = 2L x 2W x 2H = (2*2*2)L x W x H

OpenStudy (anonymous):

i dont get how to do the second question

OpenStudy (anonymous):

and how to put the number

OpenStudy (danjs):

Original Volume = L X W x H New Volume = 3L x 3W x 3 H =(3x3x3)x L x W x H = ??????

OpenStudy (utterly_confuzzled):

38,556/1,428 = 27 So its 27 times bigger which is to be expected because 3^3 is 27.

OpenStudy (anonymous):

ok thx

OpenStudy (anonymous):

can you help me in a couple more plz

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