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zvonat [6]
3 years ago
10

How do I solve this step by step?

Mathematics
1 answer:
Zinaida [17]3 years ago
8 0

Answer:

45

Step-by-step explanation:

plug in 3 where the xs are

2(3)(6(3)-5(3))+(3)^2(5(3)-4(3)=45

2(3)=6

6(3)=18

-5(3)=15

(3)^2=9

5(3)=15

-4(3)=-12

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Melanie goes to a restaurant and the subtotal on the bill was xx dollars. A tax of 6% is applied to the bill. Melanie decided to
White raven [17]

Answer:

$2.17x + 0.0702

Step-by-step explanation:

Given:

Melanie goes to a restaurant and the subtotal on the bill was $x

A tax of 6% is applied to the bill.

Melanie decided to leave a tip of 17% on the entire bill (including the tax).

Question asked:

Write an expression in terms of x that represents the total amount that Melanie paid.

<u>Solution:</u>

Subtotal amount = x

Tax amount = 6% of  x

                    =\frac{6}{100} \timesx\\ \\ =0.06+x

Tip amount = 17% of x+0.06

                   =\frac{17}{100} \times(0.06+x)\\ \\ =0.17(0.06+x)\\ \\ =0.0102+0.17x\\ \\ =0.17x+0.0102

Total amount paid = Subtotal amount + Tax amount + Tip amount

                               = =x+x+0.06+0.17x+0.0102\\ \\ =2.17x+0.0702

Therefore, Melanie paid $2.17x + 0.0702

3 0
3 years ago
Need this by midnight please show your work :)
Marina CMI [18]

Answer:

  • See below

Step-by-step explanation:

<h3>Part 1</h3>
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<u>Find t:</u>

  • I = Prt
  • 100 = 800*0.02t
  • 0.16t = 1
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<h3>Part 2</h3>
  • P = $100
  • r = 1.5% (since P < $500)
  • I = $50
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<u>Find t:</u>

  • I = Prt
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  • t = 1/0.03
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<h3>Part 3</h3>
  • P = $10000
  • r = 3% (since P > $5000)
  • I = $750
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 750 = 10000*0.03t
  • 300t = 750
  • t = 750/300
  • t = 2.5 years
4 0
2 years ago
I'm just lost on what to do with this
eimsori [14]
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The vertices of a quadrilateral are (–1, 2), (5, 2), (–1, –3), and (5, –3). What type of quadrilateral is it? A. rectangle B. sq
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Answer: The answer is B: Square

Step-by-step explanation:

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Rename 13 4/12 as a mixed number with a fraction greater than 1
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13 1/3

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