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uysha [10]
3 years ago
8

x) - 3" alt="18x + 20 + x = 10(x) - 3" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
-Dominant- [34]3 years ago
7 0

assuming you want us to solve for x

remember that you can do anything to an equation as long as you do it to both sides


18x+20+x=10x-3

combine like terms

19x+20=10x-3

minus 10x from both sides

19x-10x+20=10x-10x-3

9x+20=0-3

9x+20=-3

minus 20 from both sides

9x+20-20=-3-20

9x+0=-23

9x=-23

divide both sides by 9

\frac{9x}{9}=\frac{-23}{9}

x(\frac{9}{9})=\frac{-23}{9}

x(1)=\frac{-23}{9}

x=\frac{-23}{9}

Dima020 [189]3 years ago
4 0

18x + 20 + x = 10x -3

Combine like terms

19x + 20 = 10x -3

Subtract 20 to both sides because whatever you do on one side you have to do it on the other side:

19x = 10x -23

Subtract 10x

9x = -23

Divide 9 to isolate x:

x = -23/9

Simplify to get a mixed number:

x = -2 5/9

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sineoko [7]
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Brianna has 0.15 liter of a liquid. She will use 0.4 of this liquid. How many liters will she use?
alukav5142 [94]

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Step-by-step explanation:

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4 0
3 years ago
Nikki has 3 pieces of yarn. the first piece is 5/6 feet long the second piece is 5/3 feet long and the third piece is 3/2 oder s
xenn [34]
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Hope this answers the question. Have a nice day.
4 0
2 years ago
Which of the following p values will lead us to reject the null hypothesis if the level of significance equals .05?
V125BC [204]

Answer:

So then our significance level is \alpha=0.05 and we need to remember these two conditions:

1) If the p value p_v we have enough evidence to reject the null hypothesis at the significance level given

2) If the p value p_v \geq \alpha we have enough evidence to FAIL reject the null hypothesis at the significance level given

And baed on the options we see that the only possibility would be:

d. 0.015

Step-by-step explanation:

We want to know for which value we would REJECT the null hypothesis.

So then our significance level is \alpha=0.05 and we need to remember these two conditions:

1) If the p value p_v we have enough evidence to reject the null hypothesis at the significance level given

2) If the p value p_v \geq \alpha we have enough evidence to FAIL reject the null hypothesis at the significance level given

And baed on the options we see that the only possibility would be:

d. 0.015

7 0
3 years ago
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