Mathematics
8 Online
OpenStudy (jamaljunior):
https://gyazo.com/598605586378cc9f7e5ec11e0ad5e2f7
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OpenStudy (vuriffy):
Okay, common ratio, so, it's a fraction.
OpenStudy (vuriffy):
What fraction multiplied by 54 equals 36?
OpenStudy (vuriffy):
What can you divide throughout all the given numbers?
54 - 36 - 24 - 12
OpenStudy (jamaljunior):
um
OpenStudy (jamaljunior):
4
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OpenStudy (jamaljunior):
wait no
OpenStudy (jamaljunior):
6
OpenStudy (vuriffy):
54/4 = 13.5, so no.
OpenStudy (jamaljunior):
yeah. its 6
OpenStudy (vuriffy):
Try smaller in this case.
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OpenStudy (jamaljunior):
3
OpenStudy (vuriffy):
A little bit smaller in this case.
OpenStudy (jamaljunior):
2
OpenStudy (jamaljunior):
lol why didnt i think of that first
OpenStudy (vuriffy):
This method I use helps you come up with the denominator that must be used to get to the next value. 2 will be your numerator.
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OpenStudy (vuriffy):
|dw:1481085219185:dw|
OpenStudy (vuriffy):
Are you able to work that out for me, or do you wish for me to show you?
OpenStudy (jamaljunior):
idk how to work it out sry
OpenStudy (jamaljunior):
so pls show
OpenStudy (vuriffy):
|dw:1481085332990:dw|
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OpenStudy (vuriffy):
54 * (2/3) = 36.
36 * (2/3) = 24.
24 * (2/3) = 16.
OpenStudy (vuriffy):
Oops, I am sorry, you "multiply by x" for the second step.
OpenStudy (jamaljunior):
So what do I do now vuriffy? is that the answer?
OpenStudy (vuriffy):
Yes. It has proven to equal the next value in the sequence every time. So, it is the common ratio.
OpenStudy (jamaljunior):
what should i put exactly? @Vuriffy
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OpenStudy (vuriffy):
3:2, because it is descending.
Also, you may do this:
54/36 = 1.5
36/24 = 1.5
24/16 = 1.5
OpenStudy (vuriffy):
My method is different, but you have to flip the ratio every time.
OpenStudy (jamaljunior):
alright thx
OpenStudy (jamaljunior):
could yu help with another?