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Pani-rosa [81]
3 years ago
12

How would I do this? Solve for q. –10 + 10q = 9q

Mathematics
1 answer:
DerKrebs [107]3 years ago
4 0

Answer:

q=10

Step-by-step explanation:

-10+10q=9q

-10=-q

q=10

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How many terms are in this expression?<br> b+8+2a
Grace [21]

Answer:

There are three terms in this expression.

Step-by-step explanation:

b is your <u>first term</u>

8 is your <u>second term</u>

Even though the next term is 2a it is still a single term making it your <u>third and final term.</u>

5 0
3 years ago
Solve the following inequality 90 &gt; 10x + 80
Lera25 [3.4K]

Answer:

x<1

Step-by-step explanation:

10x + 80 < 90

10x < 90 - 80

10x < 10

x < 1

3 0
3 years ago
PLZ HELP William’s typical running speed is 6 km/h. The difference between his fastest speed and his typical speed is 1.5 km/h.
yarga [219]
I might not be right but I think William's fastest speed is 7.5 km/h. 
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3 years ago
Read 2 more answers
A sample of 50 drills had a mean lifetime of 12.17 holes drilled when drilling a low-carbon steel. Assume the population standar
zmey [24]

Using the z-distribution, it is found that the 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

We are given the <u>standard deviation for the population</u>, hence, the z-distribution is used. The parameters for the interval is:

  • Sample mean of \overline{x} = 12.17
  • Population standard deviation of \sigma = 6.37
  • Sample size of n = 50.

The margin of error is:

M = z\frac{\sigma}{\sqrt{n}}

In which z is the critical value.

We have to find the critical value, which is z with a p-value of \frac{1 + \alpha}{2}, in which \alpha is the confidence level.

In this problem, \alpha = 0.95, thus, z with a p-value of \frac{1 + 0.95}{2} = 0.975, which means that it is z = 1.96.

Then:

M = 1.96\frac{6.37}{\sqrt{50}} = 1.77

The confidence interval is the <u>sample mean plus/minutes the margin of error</u>, hence:

\overline{x} - M = 12.17 - 1.77 = 10.4

\overline{x} + M = 12.17 + 1.77 = 13.94

The 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

A similar problem is given at brainly.com/question/22596713

6 0
3 years ago
Which value of the variable is a solution of the inequality?
Kitty [74]
The value that the variable can be to be a solution to the inequality is if the variable represents -6, values of -9 and -8 are smaller than -7 as they appear even further away from zero.
5 0
3 years ago
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