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kolezko [41]
3 years ago
15

write an equation that involves multiplication, contains a variable, and has a solution of 5. then write another equation that h

as the same solution and includes the same variable and numbers but uses division.
Mathematics
2 answers:
makkiz [27]3 years ago
8 0
(1) 2x = 10

(2) x = 10 / 2

Hope this helped!
bixtya [17]3 years ago
3 0
Let's make it a simple equation, yes?
We'll use the variable <em>x</em>
Equation involving multiplication:
2x=10
We'll solve it to make sure it works. Since the solution has to be five, we'll plug that in for <em>x</em>
2×5=10
10=10
This works, so we can move on.
Equation involving division:
10÷x=2
Again, we'll solve it to make sure it works, plugging in 5 for <u /><em>x</em>
10÷5=2
2=2
This equation works as well.
The two equations are
2x=10
and
10÷x=2

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Answer:

The price of hot dog is $2.5 and that of a pretzel is $1.25.

Step-by-step explanation:

Let the cost of hotdogs be x and that of pretzels be x.

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4x+3y = 13.75 ...(1)

and

2x+5y = 11.25 ...(2)

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Subtract equation (1) from (3).

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3 0
3 years ago
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
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Answer:

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

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

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

* Solve the equation for x.

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Divide by y:

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

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

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

Divide by 3:

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* Swap the variables:

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Write back into function form:

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Answer:

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Step-by-step explanation:

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Hence, proved.

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