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Zepler [3.9K]
4 years ago
7

The Harris family went to dinner and their bill was $63.86. If the sales tax was 7.25% and they wanted to leave a 18% tip, what

is the total amount of their bill?
Mathematics
1 answer:
Elanso [62]4 years ago
4 0
$63.86 × 0.0725=$4.63
$63.86+$4.63=$68.49
$68.49×.18=$11.43
$68.49+$11.43=$79.92
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kolezko [41]
The edible fruit=fruit-seed

alright

vsphere=4/3pir^3

so if the volume is 100
of the seed
100=\frac{4}{3}\pi r^3
find r
times both sides by 3/4
75=\pi r^3
divide both sides by pi
\frac{75}{\pi}= r^3
cube root both sides
\sqrt[3]{\frac{75}{\pi}}= r
this is the seed radius
3 times of taht is the radius of the fruit
3\sqrt[3]{\frac{75}{\pi}}=radiusfruit

input into equation
use radius fruit for r
V=\frac{4}{3}\pi r^3
V=\frac{4}{3}\pi (3\sqrt[3]{\frac{75}{\pi}})^3
V=\frac{4}{3}\pi (27)(\frac{75}{\pi})
V=\frac{8100\pi}{3\pi}
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6 0
3 years ago
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raketka [301]
The answer is A. The first one
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3 years ago
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Suppose a normal distribution has a mean of 38 and a standard deviation of 2. What is the probability that a data value is betwe
Dimas [21]

Answer:

P ( 37 < x < 41) = P(-0.5 < Z < 1.5) =  0.6247

Step-by-step explanation:

We know mean u = 38  standard dev. s = 2

We want  P ( 37 < x < 41)

so

P( (37 - 38) / 2 <  Z) =  P(-0.5 < Z)  

P( Z <  (41 - 38)/2 ) =  P( Z < 1.5)

Find  P(Z < -0.5) = 0.3085

Find P(Z > 1.5) = 0.0668

so  P(-0.5 < Z < 1.5) =  1  - P(Z < -0.5) - P(Z > 1.5)

P(-0.5 < Z < 1.5) =  1  - 0.3085 -  0.0668

P(-0.5 < Z < 1.5) =  0.6247

P ( 37 < x < 41) = P(-0.5 < Z < 1.5) =  0.6247

3 0
3 years ago
C and D are vertical angles with mC = -x+26 and m D = 2x - 10<br> What is m D?
zhenek [66]

Answer:

14

Step-by-step explanation:

Because they are vertical angles, they are congruent. This means you should set them equal to each other and solve.

-x+26 = 2x-10

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+x        +x

36=3x

/3    /3

12 = x

Now we will apply this to mD

2(12)-10

24-10

=14

7 0
3 years ago
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Answer:

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x=1/2-2/2=\frac{-1}{2}

Step-by-step explanation:

Hope it helps!

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3 years ago
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