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3 years ago

A point on a wheel moves at 32π/9 radians per minute. How many seconds are required for the point to complete 7 revolutions?

Mathematics

1 answer:

Nuetrik [128]3 years ago

7 0

Answer:

Step-by-step explanation:

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Marie, Shelia, and Martha bought snacks for a girl's sleepover. They each bought the items shown in the following table at the l

creativ13 [48]

Using a system of equations, it is found that the unit prices are:

$2.25 for a bag of chips.

$1.50 for a liter of pop.

$1.75 for a chocolate bar.

For the system:

x is the unit price of a bag of chips.

y is the unit price of liter of pop.

z is the unit price for a chocolate bar.

From the table, the equations are:

$2x + 2y + z = 9.25$

$3x + 4y + z = 14.50$

$x + 3y + 3z = 12$

Replacing the <u>first equation on the second and the third:</u>

$z = 9.25 - 2x - 2y$

$3x + 4y + z = 14.50$

$3x + 4y + 9.25 - 2x - 2y = 14.50$

$x + 2y = 5.25$

$x = 5.25 - 2y$

$x + 3y + 3z = 12$

$x + 3y + 3(9.25 - 2x - 2y) = 12$

$-5x - 3y = -15.75$

$5x + 3y = 15.75$

Since $x = 5.25 - 2y$ :

$5(5.25 - 2y) + 3y = 15.75$

$-7y = -10.5$

$y = \frac{10.5}{7}$

$y = 1.5$

Then:

$x = 5.25 - 2y = 5.25 - 2(1.5) = 2.25$

$z = 9.25 - 2x - 2y = 9.25 - 2(2.25) - 2(1.5) = 1.75$

The unit prices are:

$2.25 for a bag of chips.

$1.50 for a liter of pop.

$1.75 for a chocolate bar.

A similar problem, also solved using a system of equations, is given at brainly.com/question/14183076

4 0

3 years ago

DON’T REPLY IF YOU DON’T WATCH THE DREAM SM

loris [4]

Answer:

it looks decent just give it make it more detailed otherwise it looks good

4 0

3 years ago

Read 2 more answers

If the volume of a cone is 12.56, and the height is 3. What is the radius of the cone? R=

Alina [70]

Answer:

you can find a radius through its volume and height. Multiply the volume by 3. For example, the volume is 20. Multiplying 20 by 3 equals 60

Step-by-step explanat

I hope to help you

5 0

2 years ago

I am working with exponents and my problem is 24-y to the second power. y=3. --> 24-3 to the second power. I got 15. Am I cor

Ipatiy [6.2K]

You are correct sweetie

3 0

3 years ago

4×-3(×-2)=21<br>Show your Work

IRINA_888 [86]

Answer:

24 does not equal 21

Step-by-step explanation:

4×-3(×-2)=21

Distribute:

4*6=21

24 does not equal 21

5 0

4 years ago