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Ratling [72]
3 years ago
6

Consider the line y = 9x-5.

Mathematics
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

4 \times  {4}^{ -  5 \times 4}

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3.75x = 3<br> how to do this, please help.
Travka [436]

Answer:

0.8

Step-by-step explanation:

you divide both sides by 3.75 (because its multiplied) so the 3.75 connected to the x cancels out and your left with x on the left and 3 over 3.75 equals 0.8 so its x = 0.8

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2. Which graph represents the solution to the given system? (1 point)
matrenka [14]

Answer:

1000000000000000million

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2 years ago
Ritchie got a job at the movie theater. On the first day, he sold 5 adult tickets and 7 children tickets for a total of 104. On
g100num [7]

Answer:

  • adult: $11
  • children: $7

Step-by-step explanation:

The sales on the two days can be expressed using equations that can be solved for ticket prices.

<h3>Setup</h3>

Let x and y represent the prices of adult and children's tickets, respectively. Then the sales revenue for the two days can be expressed in the equations ...

  • 5x +7y = 104
  • 7x +3y = 98

<h3>Solution</h3>

One of the easiest solution methods is to use a graphing calculator. The first attachment shows the prices are $11 for an adult ticket; $7 for children tickets.

Using the matrix functions of a calculator, the augmented matrix of the equation coefficients can be reduced to row-echelon form. This, too, shows the solution to be (adult price, children price) = ($11, $7). See the second attachment. (The solution is the right-most column of the reduced matrix.)

Yet another solution method can use the coefficients from the equations written in general form:

  • 5x +7y -104 = 0
  • 7x +3y -98 = 0

In this form, we define three products of "cross multiplication":

  Δ1 = (5)(3) -(7)(7) = -34

  Δ2 = (7)(-98) -(3)(-104) = -374

  Δ3 = (-104)(7) -(-98)(5) = -238

Using those, we find the variable values to be ...

  x = Δ2/Δ1 = -374/-34 = 11

  y = Δ3/Δ1 = -238/-34 = 7

(adult price, children price) = ($11, $7)

__

You can read more about the cross-multiplication method here:

brainly.com/question/26397343

6 0
1 year ago
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Help me find the value​
andreyandreev [35.5K]

Answer:

soln

Step-by-step explanation:

a=7

b=-2

5a-3b

5×7-3×-2

35+6(because - and - becomes+

41ans

4 0
2 years ago
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Jason wakes up for school at 5:30 in the morning. If school starts at 7:00 am, how long in minutes does he have from the time wh
Naddika [18.5K]

Answer:

90 minutes

Step-by-step explanation:

an hour is 60 minutes+ another 30 minutes= 90

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3 years ago
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