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4 years ago

7

Nicole buys a meal in a town with a 9% sales tax. She tips 19% on the bill before adding the sales tax. She pays a total of $23.

35. What should be the original cost of her meal?

1 answer:

Allushta [10]4 years ago

6 0

Your answer is $18. You just take off 19% of 23.35, add it to the total, then add 9% of $19.62

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What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form?

Pavel [41]

$\boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}$

<h2>Explanation:</h2>

Using the quadratic formula:

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ Here: \\ \\ f(x) = x^2 + 5x + 5 \\ \\ \\ So: \\ \\ a=1 \\ \\ b=5 \\ \\ c=5 \\ \\ \\ x=\frac{-5 \pm \sqrt{5^2-4(1)(5)}}{2(1)} \\ \\ x=\frac{-5 \pm \sqrt{25-20}}{2} \\ \\ x=\frac{-5 \pm \sqrt{5}}{2} \\ \\ \\ Two \ solutions: \\ \\ \boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}$

<h2>Learn more:</h2>

Quadratic functions: brainly.com/question/12164750

#LearnWithBrainly

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3 years ago

A school principal had has his students vote for a new schiil mascot. One- sixth of the students voted for a falcon, 1/3 voted f

Agata [3.3K]

C. More students voted for a bulldog than falcon

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3 years ago

HELP!!!!!!!!!!!!!!!!

wolverine [178]

Ratio x coordinates = 20/10
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3 years ago

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Lydia's bank account had a balance of -$18.24. She deposited $30.50 in the account. What is

garri49 [273]

Answer: Lydia’s new balance would be $12.26.

Explanation:
Deposit means add so,
-18.24+30.50=12.26
Now Lydia will have $12.26 in the account.

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3 years ago

PLEASE HELP ME QUICKLY!! IM BEING TIMED

Sonja [21]

Answer:

<h3>The value of the second number is <em><u>24</u></em><em><u> </u></em>and the first no <em><u>12</u></em><em><u>.</u></em></h3>

Step-by-step explanation:

<h3> Greetings !</h3>

From, the given word explanation try to create your own equation like

x + y = 36... (1) let the two numbers be x and y respectively.
2x = y ....(2) let x be the first no and it's twice that of the second number.

From, equation (1) solve for x

x + y = 36
x = 36-y... (3)

Substitute, equation (3) to equation (2).

2(36-y) =y
72 - 2y =y
72 = y + 2y.... solve for y
72 = 3y.... divide both sides by 3
72/3 = y..
<em><u>y=24</u></em><em><u> </u></em><em><u>.</u></em>..simplified

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1 year ago

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