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MAXImum [283]
2 years ago
10

What is the value of x in the equation 5 x - y 5x - y = 30, when y = 15?​

Mathematics
1 answer:
Lana71 [14]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

5x-15=30

add 15 to both sides

5x=45

divide by 5

x=7

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What is the y-intercept of the function described by the data in the table below? Xy -1 5 2 -7 5 -19
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Answer:

46

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8 0
3 years ago
Heights of adult males are known to have a normal distribution. a researcher claims to have randomly selected adult males and me
8090 [49]

Answer:

The sum of the probabilities is greater than 100%; and the distribution is too uniform to be a normal distribution.

Step-by-step explanation:

The sum of the probabilities of a distribution should be 100%.  When you add the probabilities of this distribution together, you have

22+24+21+26+28 = 46+21+26+28 = 67+26+28 = 93+28 = 121

This is more than 100%, which is a flaw with the results.

A normal distribution is a bell-shaped distribution.  Graphing the probabilities for this distribution, we would have a bar up to 22; a bar to 24; a bar to 21; a bar to 26; and bar to 28.

The bars would not create a bell-shaped curve; thus this is not a normal distribution.

3 0
3 years ago
Read 2 more answers
Y²÷2y²-12y+16÷2+y-2​
Fynjy0 [20]
Y^2 / 4y-16 if you need the solving steps let me know
5 0
3 years ago
Does the equation 2x + 3 = 11 go through the point (1,4)?
Jet001 [13]
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6 0
3 years ago
PLEASEHELP!!!!!!
pantera1 [17]

Using proportions, it is found that the speed of the runners are of 16 mph and of 20 mph.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount.

After 30 minutes, the runners are 2 miles apart, hence the second runner is 4 miles per hour faster than the second, that is:

v_2 = v_1 + 4.

The first runner's speed is 4/5 of the speed of the second runner, hence:

v_1 = \frac{4}{5}v_2

v_1 = \frac{4}{5}(v_1 + 4)

\frac{1}{5}v_1 = \frac{16}{5}

v_1 = 16

v_2 = 16 + 4 = 20

Hence, the speed of the runners are of 16 mph and of 20 mph.

More can be learned about proportions at brainly.com/question/24863377

5 0
2 years ago
Read 2 more answers
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