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Strike441 [17]
3 years ago
10

-5x - 4=46 two step equations

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0

For this case we must solve the following equation:

-5x - 4 = 46

To do this, we must clear the value of "x":

We add 4 to both sides of the equation:

-5x - 4 + 4 = 46 + 4\\-5x = 50

We divide between -5 on both sides of the equation:

\frac {-5x} {- 5} = \frac {50} {- 5}\\x = -10

Answer:

x = -10


Anastaziya [24]3 years ago
6 0
-5x-4=46
-5x=46+4
-5x=50
÷both sides by -5x.
so your answer is going to be -10. and is so because u are diving with a negative number
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Answer:

List the factors of 450

1,450

3,150

5,90

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The factor with the sum of 43 is 18+25

25-18=7 so the difference is 7

hope this helps

Step-by-step explanation:

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How many cylindrical can of bottles 12 cm high and with 6 cm diameter could be filled from a tank containing 125 liters of deter
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Answer:

368 cans.

Step-by-step explanation:

Volume of 1 can = π r^2 h.

Here h (height) = 12 and r (radius) = 1/2 * 6 = 3 cm.

So V =  π * 3^2 * 12

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=  125,000 cm^3, so:

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PLS HELPPPP equation of the line that is parallel to the line y − 3x = 4 and passes through the point (0, −3)
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Answer:

y = 3x - 3

Step-by-step explanation:

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y = 3x + 4 ← in slope- intercept form

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Answer:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

Step-by-step explanation:

Information given

\bar X=46.5 represent the mean

\sigma=1.1 represent the population standard deviation

n=150 sample size  

\mu_o =46.7 represent the value to verify

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean for this case is 46.7, the system of hypothesis would be:  

Null hypothesis:\mu = 46.7  

Alternative hypothesis:\mu \neq 46.7  

Since we know the population deviation the statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

Replacing we got:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

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