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kipiarov [429]
4 years ago
10

A restaurant bill before tax is $19.50. If the sales tax is 7.5% and a $18 tip is added, what is the total cost of the meal?

Mathematics
1 answer:
gtnhenbr [62]4 years ago
7 0

Turn 7.5% into a decimal. 7.5% = .075 or since this is money, .08 cents. Add everything together. Final answer is $37.58

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if BA is extended all the way through A creating BF and A becomes the midpoint of BF, then what are the coordinates of F
gogolik [260]

Answer:

F(2x_A-x_B,2y_A-y_B)

Step-by-step explanation:

Let points A, B and F have coordinates A(x_A,y_A),  B(x_B,y_B) and F(x_F,y_F).

If BA is extended all the way through A creating BF and A becomes the midpoint of BF, then the midpoint A of the segment BF has coordinates:

\dfrac{x_B+x_F}{2}=x_A\\ \\\dfrac{y_B+y_F}{2}=y_A

Express coordinates of point F:

x_B+x_F=2x_A\Rightarrow x_F=2x_A-x_B\\ \\y_B+y_F=2y_A\Rightarrow y_F=2y_A-y_B

Hence,

F(2x_A-x_B,2y_A-y_B)

3 0
3 years ago
Need to show work for these 2 questions (*the answers are correct tho)
Goryan [66]
10: I=prt. I=$15,000x4%x6. I=600x6. I=$3,600. 11: (3x+6)·(x+3) or (3x+3)·(x+6) either way it doesn't work :) I hope this helps :)
8 0
3 years ago
D=150 ft r=20 ft per min. t=?
Rama09 [41]
T=d/r 
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7 0
4 years ago
50 POINTS pleaseee help its URGENT!!!! Ill give brainlist and if there all right i might send u 20 dollars!!! Pleasee help me!!
Sonbull [250]

Answer:

A. 22°

E. 15

I. 39°

F. 71°

C. 25.6

H.12.9

K.55°

Step by Step Explanation:

1. cos^{-1}(52/56)=21.7867893 or 22 degrees

2. 22sin43=15

3. tan^{-1}(34/42) or 38.990999404 or 39 degrees

4. sin^{-1}(51/54)=70.81186355 or 71 degrees

5. 20/(tan38)=25.58883264 or 25.6

6. 20sin40=12.85575219 or 12.9

7. cos^{-1}(26/45)=54.70560532 or55 degrees

Hope that helps!:)

8 0
3 years ago
3. Which list contains all of the factors of the number 48?
Tatiana [17]

Answer:

The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48

so the 3rd option is correct

6 0
3 years ago
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