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Blizzard [7]
3 years ago
10

Phillp charges $8 the first time he walks a dog and $2 per walk after that. Carrie charge $2 the first time he walks a dog and $

3 per walk after that. Write the system of equations
Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

Answer:

8 + 2 * X = P

2 + 3 * X = C

Step-by-step explanation:

By means of the statement we have to:

Phillp case: "Charges $ 8 the first time he walks a dog and $ 2 per walk after that" that is:

P = 8 + 2 * X

Where X would be the number of walks.

Carrie case: "Charge $ 2 the first time he walks a dog and $ 3 per walk after that" That is:

C = 2 + 3 * X

Where X would be the number of walks.

Therefore the equation system would be:

8 + 2 * X = P

2 + 3 * X = C

P and C earnings of Phillp and Carrie respectively.

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2 + 6 = 8. 2 is left. 6 is left.
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Trigonometry<br> y=? x=?
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Answer:

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3 years ago
A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for
slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 %  = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})

x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})

x = 19 \pm 2.692 \times 0.5963

x = 19 \pm 1.6052

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0
3 years ago
Solve the system using elimination<br> 3x+y=27<br> -3x+4y=-42
padilas [110]

Hello :)

3x+y=27

-3x+4y= -42

+____________

(3x -3x) + (y+4y) = (27-42)

0 + 5y = -15

y = -3

Put "-3" for "y" in the system:

3x + y =27

3x -3=27

3x = 30

x = 10

Answer = x:10 y: -3

Have a nice day :)

8 0
3 years ago
Two consecutive integers have a sum of 513. find the smaller of these two number
nexus9112 [7]
513/2=256.5
which means 256 and 257 are the answers
5 0
4 years ago
Read 2 more answers
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