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3 years ago

3 ears of corn cost $1

Mathematics

2 answers:

RSB [31]3 years ago

6 0

Im not sure if i understand this fully but if you keep adding 3 ears of corn it will add a dollar for each 3

lisov135 [29]3 years ago

3 0

Yes 3 ears of corn cost $1

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Solve а) 3х - 5 = 13

skelet666 [1.2K]

Answer:

Step-by-step explanation:

3х - 5 = 13

+5 +5

3x=18

/3 /3

x=6

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3 years ago

If y=2-3x/x+3 express x in terms of y [20pts]

ollegr [7]

Answer:

a. x = (2 -3y)/(y+3)

b. x = -4/5

Step-by-step explanation:

Clear the fraction, collect x terms, divide by the coefficient of x.

$y=\dfrac{2-3x}{x+3}\\\\y(x+3)=2-3x\\\\3x+xy=2-3y\qquad\text{add $3x-3y$}\\\\x(y+3)=2-3y\qquad\text{factor out x}\\\\\boxed{x=\dfrac{2-3y}{y+3}}\qquad\text{divide by the coefficient of x}$

Put 2 where y is and do the arithmetic.

x = (2 -3(2))/(2 +3) = (2 -6)/5

x = -4/5

6 0

3 years ago

Simplify (36/81) raised to the power -1/2

rosijanka [135]

Step-by-step explanation:

Hey, there!!

I hope you mean,

$\frac{ - 1}{2} \: means \: \sqrt{}$

and

$36 = {6}^{2} \: and \: 81 = {9}^{2}$

$so \: \: \sqrt{ \frac{ {6}^{2} }{ {9}^{2} } }$

$or \: ( { \frac{ {6}^{2} }{ {9}^{2} }) }^{ \frac{ - 1}{2} }$

so, the answer is 6/9 or, 2/3.

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3 years ago

What is 64x6 + 27 written as a sum of cubes?

nadezda [96]

Answer:last one

Step-by-step explanation:

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4 years ago

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larisa86 [58]

$\log_ab=c\iff a^c=b\\\\therefore\\\\\ln3=c\iff e^c=3\to\boxed{D}$

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4 years ago