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3 years ago

Scale down 12/720 = 4/X

Mathematics

2 answers:

elena55 [62]3 years ago

8 0

Answer:

x = 240

Step-by-step explanation:

solve for x by cross multiplying

melamori03 [73]3 years ago

8 0

Answer: X=240
Explanation:
12 divided by 3 equals 4,
Then 720=240/X

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2 years ago

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ch4aika [34]

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3 years ago

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Find the positive value of x in the geometric sequence 7x-2,4x+4,3x

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$
 \left \{ {{3x=k*(4x+4)} \atop {4x+4=k*(7x-2)}} \right. \\\\
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36k^2-6k-12=0\\
6k^2-k-2=0\\

\boxed{k= \dfrac{2}{3} \ or\ k= -\dfrac{1}{2}}\\\\

x=\dfrac{4*\dfrac{2}{3} }{3-4*\dfrac{2}{3} }=8\\
x=\dfrac{4*\dfrac{-1}{2} }{3-4*\dfrac{-1}{2} }=-\dfrac{2}{5}\\





$

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valina [46]

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