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Leokris [45]
1 year ago
11

A tutor charges $40 per hour. in one week, the tutor spends 5 and a half hours tutoring one student and 10 hours tutoring anothe

r student. determine the total amount the tutor earned that week.
Mathematics
1 answer:
otez555 [7]1 year ago
5 0

The total amount the tutor earned that week is $620.

<h3>What is unitary method?</h3>

The unitary technique determines the value of the a unit and subsequently the value of a necessary number of units.

Assume you visit the market to buy six apples. The shopkeeper informs you that he's offering ten apples for Rs one hundred. The apples are indeed the units in this scenario, and also the cost of a fruit is the value. It is critical to know the units & values while utilizing the unitary technique to solve an issue.

Now, according to the question-

The amount earned from student first by teaching 5 and half hours in a week is;

(40×5)+(40×1/2)

200+20=$220

Similarly, the amount earned from student second by teaching 10 hours in a week is;

40×10=$400

Thus, the total amount earned by the tutor is;

$400+$220=$620

Therefore, the total amount the tutor earned that week is $620.

To know more about unitary method, here

brainly.com/question/23423168

#SPJ4

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2. Which is the following equation rewritten in slope-intercept form: -8x = 2 - 2y
Anna007 [38]

Answer:

B, y = 4x + 1

Step-by-step explanation:

to get it into y- intercept form we need to write it in the form y = mx + b

-8x = 2 - 2y, move 2y to the other side and -8x to the other side they both become positive.

2y = 8x + 2, dividing each by 2

yields y = 4x + 1

Hope this helps

8 0
2 years ago
Suppose that the pages per book in a library are normally distributed with an unknown mean and standard deviation. The book leng
Elanso [62]

Answer:

A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean

Step-by-step explanation:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 39 - 1 = 38

Now, we have to find a value of T, which is found looking at the t table, with 38 degrees of freedom(y-axis) and a confidence level of 0.99(t_{99}). So we have T = 2.0244.

A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean

6 0
3 years ago
Here's a graph of a linear function. Write the
Savatey [412]

there is no visible graph

Step-by-step explanation:

4 0
3 years ago
What is the equation in slope-intercept form of a line that is perpendicular to y=2x+2 and passes through the point (4, 3)?
Ostrovityanka [42]
<h2>Answer:   y = - ¹/₂ x + 5 </h2>

<h3>Step-by-step explanation: </h3>

<u>Find the slope of the perpendicular line</u>

When two lines are perpendicular, the product of their slopes is -1. This means that the slopes are negative-reciprocals of each other.

                 ⇒  if the slope of this line = 2     (y = 2x + 2)

                      then the slope of the perpendicular line (m) = - ¹/₂

<u>Determine the equation</u>

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:  

                               ⇒  y - 3 =  - ¹/₂  (x - 4)

We can also write the equation in the slope-intercept form by making y the subject of the equation and expanding the bracket to simplify:

                             since   y - 3 =  - ¹/₂  (x - 4)

                                              y = - ¹/₂ x + 5   (in slope-intercept form)

8 0
2 years ago
Which of the following ordered pairs in a solution of the equation y equals negative 4 x squared​
Jlenok [28]

Answer:

Step-by-step explanation:

The equation is y = -4x²

Next time, please share the answer choices.

Here's a short table of possible solutions:

x     -x²    (x, y)

-----  ------  ---------

 0       0    (0, 0)

2      -4     (2, -4)

-3     -9      (-3, -9)

6 0
3 years ago
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