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spayn [35]
3 years ago
6

Kelly tells you that when variables are in the denominator, the equation becomes unsolvable. "There is a value for x that makes

the denominator zero, and you can't divide by zero," Kelly explains. Using complete sentences, demonstrate to Kelly how the equation is still solvable.
Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0

The problem can be translated into an equation that is something like 4/5 + 3/x = 1/2 
we cannot have x equal to zero because the number can be infinite. 
So the LCD here is 10x, so multiply both sides by that to get: 
8x + 30 = 5x 
Subtract 5x and 30 from both sides: 
3x = -30 
divide: 
x = -10 
The solution isn't zero so there is a solution.
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Given

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2 years ago
Please help i have 2 questions thank you very much.
Rudik [331]
Hello!

Question 1
We first have to convert everything to yards since the concrete is charged by the cubic yards

15 feet = 5 yards
15 feet = 5 yards
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------------------------------------------------------------------------------------------------------
Question 2

You have to find the volume of the first pyramid

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Put in the values we know

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Multiply

V =  \frac{7168}{3}

Divide

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Now we use this to find the side length of the second pyramid

2389.333 =  \frac{lw * 112}{3}

Multiply both sides by 3

<span>7167.999 = lw * 112
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63.9999 = lw

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Take the square root of both sides

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2 years ago
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