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3 years ago

Michael made two trips to the market. On his first trip to the market, he bought x apples on sale for $3 each and y

Mathematics

1 answer:

Galina-37 [17]3 years ago

6 0

Answer:

He bought 8 Apples and 4 banana

Step-by-step explanation:

$3x+2y=32\\5x-2y=32$

Linear Combination (add equations)

$8x+ 0y=64\\8x=64\\x=8\\$

So 8 Apples (X)

the put 8 in for X in either equation

$3(8)+2y=32\\24+2y=32\\2y=8\\y=4$

4 Bananas

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3 years ago

Shane has 1/2 pound of cheese to make 4 sandwiches. He wants to use the same amount of cheese in each sandwich. What fraction of

anastassius [24]

Answer:

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Step-by-step explanation:

Here, we have a question that requires the method of dealing with the division of fractions.

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3 years ago

What is2/3 divided by 4/5

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The answer to this question is 5/6

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3 years ago

Read 2 more answers

How does one find the inverse function of f(x)= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3x-1%7D" id="TexFormula1" tit

lisabon 2012 [21]

Answer:

$\displaystyle f^{-1}(x)=\frac{1+x}{3x}$

Step-by-step explanation:

<u>The Inverse of a Function</u>

The procedure to find the inverse of the function is:

* Write the function as a two-variable equation:

$\displaystyle y=\frac{1}{3x-1}$

* Solve the equation for x.

Multiply by 3x-1

$y(3x-1)=1$

Divide by y:

$\displaystyle 3x-1=\frac{1}{y}$

Sum 1:

$\displaystyle 3x=\frac{1}{y}+1$

Operate the right side:

$\displaystyle 3x=\frac{1+y}{y}$

Divide by 3:

$\displaystyle x=\frac{1+y}{3y}$

* Swap the variables:

$\displaystyle y=\frac{1+x}{3x}$

Write back into function form:

$\boxed{\displaystyle f^{-1}(x)=\frac{1+x}{3x}}$

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Answer:

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Step-by-step explanation:

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