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allsm [11]
2 years ago
7

eric has a riddle: " i am thinking of a fraction that is equivalent to 2/5 and the numerator is 18 less than the denominator." w

hat is his fraction explain how you know.​
Mathematics
1 answer:
dezoksy [38]2 years ago
5 0

Answer:

12/30

Step-by-step explanation:

So we know that the denominator-numerator=18

And we also know that it's equal to 4/10 or 2/5.

Soooooooooooooo the most easiest is just to trial and error: 12/30

But I don't really know the more complex formula...

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Answer:

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3 0
3 years ago
i need help finding the height of a cone and i do not know where to start. any help will be greatly appreciated:))
Aliun [14]

Answer:

h=12

Step-by-step explanation:

First look at the formula for finding the volume of a cone- V=\pi r^{2} \frac{h}{3}

Next substitute any variables for values you already know- 144\pi =\pi (6)^{2} \frac{h}{3}

Then solve the equation.

3 0
2 years ago
Asher pays 156 every 6 weeks for piano lessons what is the price per year for piano lessons
Anna [14]
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6 0
3 years ago
Sophia bought 3 yards of trim to put around a rectangular scarf. She wants the width of the scarf to be a whole number that is a
sergey [27]
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8 0
3 years ago
Read 2 more answers
Rewrite <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7Bx%5E%7B2%7D-x-12%20%7D%20%20and%20%5Cfrac%7B1%7D%7Bx%5E%7B2%7D-16%20%
gogolik [260]

Answer:

2(x+4)/(x+3)(x-4)(x+4) and 1(x+3)/(x+3)(x-4)(x+4)

Step-by-step explanation:

Factor x^2-x-12: (x+3)(x-4)

Factor x^2-16: (x+4)(x-4)

So, LCD would be (x+3)(x-4)(x+4)

Rewritten: 2(x+4)/(x+3)(x-4)(x+4) and 1(x+3)/(x+3)(x-4)(x+4)

I hope this helped and have a good rest of your day!

4 0
3 years ago
Read 2 more answers
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