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3 years ago

Can someone help me with this

Mathematics

2 answers:

maxonik [38]3 years ago

5 0

Answer:

$x = 9$

Step-by-step explanation:

$- 9x + 1 = - 80 \\ - 9x = - 80 - 1 \\ - 9x = - 81 \\ \frac{ - 9x}{ - 9} = \frac{ - 81}{ - 9} \\ x = 9$

Elenna [48]3 years ago

4 0

Answer: x = 9

Explanation:

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2. Destiny rents games from a company that charges a $9.00 monthly fee and $2.50 for each game rental. She ends up paying $26.50

slega [8]

Answer:

x = 7

and it means that 7 games were rented that month

Step-by-step explanation:

Here, we are to solve for x from the given equation

we have this as:

2.5x + 9 = 26.5

2.5x = 26.5-9

2.5x = 17.5

x = 17.5/2.5

x = 7

What x means in this case is that the number of games rented in the month is 7

7 0

3 years ago

Calculate the following limit:

aleksklad [387]

$\lim_{x\to\infty}\dfrac{\sqrt x}{\sqrt{x+\sqrt{x+\sqrt x}}}=\\
\lim_{x\to\infty}\dfrac{\dfrac{\sqrt x}{\sqrt x}}{\dfrac{\sqrt{x+\sqrt{x+\sqrt x}}}{\sqrt x}}=\\
\lim_{x\to\infty}\dfrac{1}{\sqrt{\dfrac{x+\sqrt{x+\sqrt x}}{x}}}=\\
\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\dfrac{\sqrt{x+\sqrt x}}{x}}}=\\
\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\dfrac{\sqrt{x+\sqrt x}}{\sqrt{x^2}}}}=\\$
$\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\sqrt{\dfrac{x+\sqrt x}{x^2}}}}=\\\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\sqrt{\dfrac{1}{x}+\dfrac{\sqrt x}{\sqrt{x^4}}}}}=\\\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\sqrt{\dfrac{1}{x}+\sqrt{\dfrac{x}{x^4}}}}}=\\
\lim_{x\to\infty}\dfrac{1}{\sqrt{1+\sqrt{\dfrac{1}{x}+\sqrt{\dfrac{1}{x^3}}}}}=\\
=\dfrac{1}{\sqrt{1+\sqrt{0+\sqrt{0}}}}=\\$
$=\dfrac{1}{\sqrt{1+0}}=\\
=\dfrac{1}{\sqrt{1}}=\\
=\dfrac{1}{1}=\\
1
$

8 0

3 years ago

Kellan’s lemonade recipe uses 4 scoops of lemonade powder for every 2.5 cups of water. Kellan uses 10 scoops of lemonade powder

3241004551 [841]

6.25 because 2.5+2.5= 5 and then half of 2.5 is 1.25 so 6.25

3 0

3 years ago

What is 5+3y-8x-(-2)-5y

Vilka [71]

3-2y-8x is it's most simplified form I think.

4 0

3 years ago

Ummm i know both of these are easy but i can't remember them please help

ExtremeBDS [4]

It is 4 because 3 times 4 equals 12

4 0

3 years ago