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serg [7]
3 years ago
13

I cannot find the answer to 10x + 18 < -2, help anyone?

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer:

x = <-2

Step-by-step explanation:

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pedro has scores of 88,80.83 and 74 after four tests. what score must he make on his fifth test to have an average of 76 or grea
daser333 [38]

We start to solve this by looking for the formula that let us calculate an average value, this formula would be:

save=\frac{1+s2+s3+s4+s5}{5}

where Save is the average score and s is the score of each exam, Since we know the value of the score Save and 4 of the exams we can replace them in the formula, like this:

And we can solve for s5, which is the score that we need to find, like this:

\begin{gathered} 74\times5=\frac{88+80+83+74+s5}{5}\times5 \\ 74\times5=88+80+83+s5 \\ 74\times5-88-80-83-74=88+80+83+74-88-80-83-74+s5 \\ 74\times5-88-80-83-74=s5 \\ s5=74\times5-88-80-83-74=55 \end{gathered}

Then, Pedro must have a 55 score on the fifth test

3 0
10 months ago
Jefferson High School has a student body of 6⁴ students. Each class has approximately 6² students. How many classes does the sch
daser333 [38]
36, because 6^4 /6^2 is 6^2 and 6*6 (6^2) is 36 
7 0
3 years ago
A soft drink machine outputs a mean of 27 ounces per cup. The machine's output is normally distributed with a standard deviation
Rzqust [24]

Answer:  0.6065

Step-by-step explanation:

Given : The machine's output is normally distributed with

\mu=27\text{ ounces per cup}

\sigma=3\text{ ounces per cup}

Let x be the random variable that represents the output of machine .

z-score : z=\dfrac{x-\mu}{\sigma}

For x= 21 ounces

z=\dfrac{21-27}{3}\approx-2

For x= 28 ounces

z=\dfrac{28-27}{3}\approx0.33

Using the standard normal distribution table , we have

The p-value : P(21

P(z

Hence, the probability of filling a cup between 21 and 28 ounces=  0.6065

8 0
3 years ago
What is the solution to the system of equations below? y=-1/3 x+6 and y=1/3 x-6​
lilavasa [31]
The answer to the question

8 0
3 years ago
A square room of volume 900 m’has a door of
Delicious77 [7]

1687.5/7.5

=225

225×12.5

=2812.5

5 0
2 years ago
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