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liberstina [14]
3 years ago
10

-2(2n+4)=10 solve the equation

Mathematics
2 answers:
grigory [225]3 years ago
7 0
-2(2n+4) = 10
distribute the -2 through the parentheses
-4n - 8 = 10
begin to isolate n by adding 8 to each side
-4n = 18
finish isolating n by dividing both sides by -4
n = 18/-4 = -4 1/2
rosijanka [135]3 years ago
7 0
The answer is -4 \frac{1}{2}
First, we need to simplify the equation in parentheses
So we multiply (2n+4) by -2 which will get us -4n-8.
The equation now is -4n-8=10
Now we isolate the variable
Lets add the 8 to both sides of the equation
-4n-8+8=10+8
You will get -4n=18
Now divide -4n with -4 and divide 18 with -4 to "isolate the variable"
You would get n=18/-4
Simplify 18/-4 and you would get -4 \frac{1}{2}
N= <span>-4 \frac{1}{2}</span>
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What is the missing step in solving the inequality 4(x – 3) + 4 &lt; 10 + 6x? 1. The distributive property: 4x – 12 + 4 &lt; 10
earnstyle [38]

The inequality 4(x – 3) + 4 < 10 + 6x is solved as x > -9. Then the variable x is greater than the negative 9. Then the correct option is B.

<h3>What is inequality?</h3>

Inequality is defined as an equation that does not contain an equal sign.

The inequality equation is given below.

4(x – 3) + 4 < 10 + 6x

Then the steps of solving are given below.

1. The distributive property: 4x – 12 + 4 < 10 + 6x

2. Combine like terms: 4x – 8 < 10 + 6x

3. The addition property of inequality: 4x < 18 + 6x

4. The subtraction property of inequality: –2x < 18

5. The division property of inequality: x > –9

Then x is greater than the negative 9.

Then the correct option is B.

More about the inequality link is given below.

brainly.com/question/19491153

#SPJ1

7 0
1 year ago
How do compute ratios like this like 1/4miles Sebastian runs in 1.6 minutes. How long did it take him to run one mile
Anit [1.1K]
It's easier to write if you convert 1/4 into 0.25.

\frac{0.25mi}{1.6min} =  \frac{1mi}{xmin}

Then you use algebra to find that he ran the mile in 6.4 minutes.
7 0
3 years ago
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Reduce the fraction 15/20 to lowest term. ​
STALIN [3.7K]
Answer: 3/4

Divide by 5
4 0
2 years ago
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Please could u help me with this <br> Thank u sooo much:)
Simora [160]
Ok so the spread can be given by the range, interquartile range and standard deviation in this case.
Gretchen's data: Range = 22 - 3 = 19, IQR = 5, Sx = 4.69
Manuel's data: Range = 14 - 3 = 11, IQR = 4, Sx = 3.14

1. Gretchen's data is more spread out than Manuel's, which is primarily displayed by the much larger range and standard deviation for Gretchen's data (range = 19, standard deviation = 4.69) compared to Manuel's data (range = 11, standard deviation = 3.14). The interquartile range of both data sets are almost equal however, with the IQR of Gretchen's data equal to 5 and that of Manuel's data equal to 4, which may show that the greater spread of Gretchen's data is affected by the larger values in his data, namely the outlier at 22.

2. Gretchen's data set with outlier removed:
Mean = 8.71
Median = 8.5
Standard deviation = 3.31
Interquartile range = 3

3. Removing the outlier moved the centre closer, with the mean now at 8.71 and median at 8.5, compared to Manuel's data's mean of 8 and median of 8. The spread was also closer to Manuel's, with the standard deviation now equal to 3.31 (Manuel's data's standard deviation = 3.14) and the range now equal to 12 (compared to Manuel's data's range of 11). The IQR range did change from 5 to 3 after removing the outlier but there is still a difference of 1 between the IQR of Gretchen's data and that of Manuel's data. Overall however, both the centre and spread moved closer to that of Manuel's data after removing the outlier.
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3 years ago
25 red bikes out of 60 bikes​
alexandr402 [8]
35 bikes remain or it’s 60 divided by 25 i’m pretty sure
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