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Airida [17]
3 years ago
5

A comprehension test was given to students after they had studied text book material either in silence or with the television tu

rned on? what is the independent variable and the dependent variable.
Mathematics
1 answer:
Natali5045456 [20]3 years ago
6 0
The independent variable is the study environment.  This is because that's what's being changed in the experiment to determine something else.  The dependent variable is how we're measuring results.  Therefore, in this experiment, it's the result of the comprehension test.
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Roland's Boat Tours sells deluxe and economy seats for each tour it conducts. In order to complete a tour, at least 14 economy s
dmitriy555 [2]
At least 14 economy and at least 5 deluxe...total of 45 seats. He makes a bigger profit from selling economy seats....so we need the most economy seats we can get.

45 seats - 5 deluxe = 40 economy

so the most profit would be 40 economy and 5 deluxe
40 economy = (40 x 30) = 1200 profit
5 deluxe = (5 x 25) = 125 profit
for a maximum profit of : $ 1325
5 0
3 years ago
Plz help me answer this
timofeeve [1]

Answer:

(-2, -8)

x = -2

y = -8

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define systems</u>

13x - 6y = 22

x = y + 6

<u>Step 2: Solve for </u><em><u>y</u></em>

<em>Substitution</em>

  1. Substitute in <em>x</em>:                              13(y + 6) - 6y = 22
  2. Distribute 13:                                 13y + 78 - 6y = 22
  3. Combine like terms:                      7y + 78 = 22
  4. Isolate <em>y</em> term:                                7y = -56
  5. Isolate <em>y</em>:                                         y = -8

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                    x = y + 6
  2. Substitute in <em>y</em>:                                     x = -8 + 6
  3. Add:                                                      x = -2
4 0
3 years ago
Twice a number is 24<br>a. 2- n = 24<br>b. 2 + n = 24<br>c. 2 / n = 24 <br>d. 2n = 24​
Novosadov [1.4K]

Answer:

the answers are

a)-22

b)22

d)12

8 0
2 years ago
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What is the slope of a line that is perpendicular to the line y=-1/3x-6?
max2010maxim [7]
Y=-1/3x-6, for this line, the slope (m) is -1/3.
This is because the equation is in the slope intercept form: y = mx + b.
The perpendicular line to one with m = -1/3, is the negative reciprocal of m, we'll call it m2.
m2 = --3/1 = +3/1 = 3
4 0
3 years ago
Mary earns $12.50 an hour cleaning houses if she works from 8:00 3:00 how much money will she make
irinina [24]
She earn 87.50 for that many hours
6 0
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