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lianna [129]
3 years ago
7

Monica earns $39 for babysitting for 4 hours. Complete the equation to model the amount of money, y, that she earns for babysitt

ing x hours.
Mathematics
1 answer:
Nitella [24]3 years ago
6 0

Answer:

Money she will make by working for x hours = $ 39x/4

Step-by-step explanation:

Monica earns money by working 4 hours = $ 39

So, Money she will make by working for 1 hour = $ 39/4. [by using Unitary method]

Hence, Money she will make by working for x hours = $ 39x/4

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x + 3y = 7 x - 3y = 1 Solve the system of equations. A) x = 4, y = 1 B) x = 1, y = 4 C) x = - 2 3 , y = 3 Eliminate D) x = 3, y
Anit [1.1K]

Answer:

x=4, y=1

Step-by-step explanation:

x + 3y = 7

x - 3y = 1

Add the equations together to eliminate y

x + 3y = 7

x - 3y = 1

---------------------

2x = 8

Divide by 2

2x/2 = 8/2

x = 4

Subtract the two equations to eliminate x

x + 3y = 7

-x + 3y = -1

----------------------

   6y = 6

Divide by 6

6y/6 = 6/6

y =1

6 0
3 years ago
Let the random variable x be equally likely to assume any of the values 1/10, 1/5, or 3/10. determine the mean and variance of x
Keith_Richards [23]
Since the values are equally likely and equally spaced, their mean is the middle one.
  the mean is 1/5

The variance is the average of the square of the deviations from the mean.
  σ² = (1/3)((-1/10)² + 0² + (1/10)²) = 2/300
  the variance is 2/300
6 0
3 years ago
The graph of g(x)=(0.75)x+2 is shown.
Andrei [34K]

we are given

f(x)=(0.75)^x+2

For finding asymptote , we can find limit

\lim_{x \to \infty} f(x)= \lim_{x \to \infty}((0.75)^x+2)

\lim_{x \to \infty} f(x)= \lim_{x \to \infty} (0.75)^x+\lim_{x \to \infty} 2)

now, we can solve it

\lim_{x \to \infty} f(x)= 0+2

\lim_{x \to \infty} f(x)= 2

so, horizontal asymptote is

y= 2.............Answer

6 0
3 years ago
A line with a slope of 4 passes through the points (8,7) and (7,p). What is the value of p
gayaneshka [121]

Answer:

p=3

Step-by-step explanation:

There are multiple ways to solve this, but since two points are provided (8,7) and (7,p) and the slope is also given (m=4), we can use the formula for the slope.

m = \dfrac{y_2-y_1}{x_2-x_1}

Here,

m=4\quad, (x_1,y_1)=(8,7)\quad,(x_2,y_2)=(7,p)

4 = \dfrac{p-7}{7-8}

Now we'll just solve for 'p'

4 = \dfrac{p-7}{-1}

4(-1) = p-7

-4+7 =p

p=3

Hence, the line passes through (8,7) and (7,3)

7 0
3 years ago
Marco needs $57 to buy new basketball shoes. If Marco earns $3 per day working and already has $12 saved, which equation shows h
Montano1993 [528]

Answer:

57=12+3d

d=number of days worked

6 0
3 years ago
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