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3 years ago

If p - 5q = 4qr, p find the value of p when q = 4 and r = -1.

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

Answer:

p - 5q = 4qr where

q = 4 and r = -1 by applying these value

p - 5(4) = 4(4)(-1)

p - 20 = -16

p = -16 + 20

p = 4

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At a movie theater, the price of two adult tickets and for children ticket is $40 the price of a daughter gets into trouble to g

den301095 [7]

Answer: The price for one adult ticket is $10 and the price for one child ticket is $7.

Step-by-step explanation:

<h3> The correct exercise is: "At a movie theater, the price of 2 adult tickets and 4 children tickets is 48$. The price of 5 adult tickets and 2 child tickets is 64$. What is the price for one adult and one child?"</h3>

Let be "a" the price (in dollars) for one adult ticket and "c" the price (in dollars) for one child ticket.

Set up a System of equations with the data given in the exercise:

$\left \{ {{2a+4c=48} \atop {5a+2c=64}} \right.$

You can use the Elimination method to solve the System of equations:

1. Multiply the second equation by -2.

2. Add the equations.

3. Solve for "a".

Then:

$\left \{ {{2a+4c=48} \atop {-10a-4c=-128}} \right.\\........................\\-8a=-80\\\\a=\frac{-80}{-8}\\\\a=10$

4. Substitute the value of "a" into any original equation.

5. Solve for "c":

$2(10)+4c=48\\\\4c=48-20\\\\c=\frac{28}{4}\\\\c=7$

8 0

3 years ago

Does anyone know the answer? (It's not 0,4)

Murljashka [212]

I believe it would be any number that is within the darkest shaded area. (-4,1) seems like it would be correct.

6 0

3 years ago

Read 2 more answers

Find the mean of these values 100, 200, 300, 400

sveticcg [70]

250

100 + 200 + 300 + 400 = 1000

1000/4 = 250

8 0

3 years ago

Read 2 more answers

sketch a unit circle with angle instandard positionquestions:a. For what values of 0 is the sine increasing? Decreasing?b. For w

liq [111]

We can draw a unit circle as:

The sine is the vertical leg (or vertical projection) of the triangle formed by the angle.

The cosine will be the horizontal leg (or horizontal projection) of this same triangle.

The hypotenuse of this triangle will be the radius if the unit circle (r = 1).

a) The sine will be increasing from θ = 0° until it reaches its maximum at 90°.

Then it will be decreasing for angles between 90° and 270°.

Between 270° and 0° it will be increasing again.

b) The cosine has a maximum value for an angle of 0°.

It will decrease until 180°.

Then it will be increasing from angles between 180° and 360°.

c) We can see in the unit circle that the sine is 0 when the angle is one the horizontal axis, like when θ = 0° or θ = 180°.

The cosine will be equal to 0 when the angle is vertical: θ = 90° and θ = 270°.

Answer:

a) Increasing: (0°, 90°) and (270°, 360°)

Decreasing: (90°, 270°)

b) Increasing: (180°, 360°)

Decreasing: (0°,180°).

c) Sin(θ) = 0 for θ = 0° and θ = 180°

Cos(θ) = 0 for θ = 90° and θ = 270°

4 0

1 year ago

Help ASAP I’ll give brainliest how do u find this out or how do u think we could find this out

emmainna [20.7K]

Answer:

9526/87

Step-by-step explanation:

87·x=9,526

x=9526/87

3 0

3 years ago