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3241004551 [841]
3 years ago
11

How many solutions dose this system have ? X+4y=6 y=2x-3

Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Replacing y by x in the first line we'll get x+8x-12=6, so 9x=18, x=2, y=1 being the only solution

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When the input is 5, what is the output for the square function?
inessss [21]

Answer:25

Step-by-step explanation:

3 0
3 years ago
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A shipment To a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 ar
riadik2000 [5.3K]

Answer:

<u>630</u> MP3 players are likely to be defective.

Step-by-step explanation:

Given:

A shipment to a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 are defective.

Now, to find the MP3 players which are likely to be defective.

Let the defective MP3 players be x.

Total MP3 players = 4500.

In sample of 50 MP3 players 7 are defective.

Now, setting the proportion:

If, 50 is equivalent to 7.

Then, 4500 is equivalent to x.

Now, to solve using cross multiplication method:

\frac{50}{7} =\frac{4500}{x}

<em>By cross multiplying we get:</em>

<em />50x=31500<em />

<em>Dividing both sides by 50 we get:</em>

x=630.

Therefore, 630 MP3 players are likely to be defective.

5 0
3 years ago
Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices.
LiRa [457]
3x - y = 0 . . . (1)
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From (1), y = 3x . . . (3)

Putting (3) into (2) gives:
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5 0
3 years ago
Include step by step directions MAKE SURE ITS CORRECT
Yuliya22 [10]

Answer:56

Step-by-step explanation:do 180-68, then divide by 2(because the x angles are equal to each other.

7 0
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Find the most important variable in the problem.
natali 33 [55]

Answer:

A

Step-by-step explanation:

Let

x = the number of phone available

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x + 8 = 12

x = 4

This means 4 phones were available (and 8 more needed to total in 12 phones for 12 new employees)

Hence, correct option is option A.

3 0
3 years ago
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