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LiRa [457]
3 years ago
7

Can someone help me with this?

Mathematics
1 answer:
Anna007 [38]3 years ago
3 0

\frac{7}{8}  -   \frac{1}{2}
=  \frac{7}{8}  -  \frac{4}{8}
=  \frac{3}{8}
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Janice bought 3 movie tickets and 3 sodas and the total cost was $35.25. A ticket to the movie cost $5.25 more than a soda. How
Effectus [21]

Answer: a ticket to the movie costs $8.5

Step-by-step explanation:

Let x represent the cost of a movie ticket.

Let y represent the cost of a Soda.

Janice bought 3 movie tickets and 3 sodas and the total cost was $35.25. This means that

3x + 3y = 35.25 - - - - - - - - - -1

A ticket to the movie cost $5.25 more than a soda. This means that

x = y + 5.25

Substituting x = y + 25 into equation 1, it becomes

3(y + 5.25) + 3y = 35.25

3y + 15.75 + 3y = 35.25

6y = 35.25 - 15.75 = 19.5

y = 19.5/6 = 3.25

x = y + 5.25 = 3.25 + 5.25

x = 8.5

4 0
3 years ago
The blades of a windmill turn on an axis that is 40 feet from the ground. The blades are 15 feet long and complete 3 rotations e
astraxan [27]

Answer:

a is the _amplitude_(Length of the blades)_

The vertical shift, k, is the _Mill shaft height_

a = 15\ ft\\\\k = 40\ ft

y = 15sin(\frac{\pi}{10}t) + 40

Step-by-step explanation:

In this problem the amplitude of the sinusoidal function is given by the length of the blades.

a = 15\ ft

The mill is 40 feet above the ground, therefore the function must be displaced 40 units up on the y axis. So:

k = 40\ ft

We know that the blades have an angular velocity w = 3 rotations per minute.

One rotation = 2\pi

1 minute = 60 sec.

So:

w = \frac{3(2\pi)}{60}\ rad/s

w = \frac{\pi}{10}\ rad/s

Finally:

a is the _amplitude_(Length of the blades)_

The vertical shift, k, is the _Mill shaft height_

a = 15\ ft\\\\k = 40\ ft

y = 15sin(\frac{\pi}{10}t) + 40

3 0
4 years ago
Read 2 more answers
Please answer CORRECTLY !!!!!!! WILL MARK BRAINLIEST
Anastasy [175]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
A factory made 100 jars of peanut butter. 20% of the jars contained creamy peanut butter. How many jars of creamy peanut butter
belka [17]

Answer:

There would be 20 jars of creamy peanut butter.

Step-by-step explanation:

You have 100 jars of peanut butter divide that by 100. That would give you the amount for 1%. Multiply that by 20 for the 20% which will give you your answer of 20.

100/100=1

1*20=20

Number of creamy peanut butter jars is 20.

8 0
3 years ago
92<br> 7683<br><br> What the answer
eimsori [14]

Answer:

9

Step-by-step explanation:

8 0
3 years ago
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