2 years ago

How do you find x in the question \frac{x}{10}=0.1 how do you find out what x is???

Mathematics

1 answer:

docker41 [41]2 years ago

4 0

If the problem is 10x=0.1, then the answer is 0.01. you get this by dividing both sides by 10 to isolate x

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3 years ago

By driving 8 mph faster than Bob, John can make a 230 mile trip in one half hour less. How fast does Bob drive on the trip? Roun

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Step-by-step explanation:

Let the speed of Bob be 'x'.

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$\dfrac{230}{x}-\dfrac{230}{x+8}=\dfrac{3}{2}\\\\230\dfrac{x+8-x}{x(x+8)}=\dfrac{3}{2}\\\\\dfrac{230\times 8}{x^2+8x}=\dfrac{3}{2}\\\\\dfrac{1840}{x^2+8x}=\dfrac{3}{2}\\\\1840\times 2=3x^2+24x\\\\3680=3x^2+24x\\\\3x^2+24x-3680=0\\\\x\approx 56.8\ km/hr$