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ad-work [718]
3 years ago
13

2 An equation is shown. 2/3x - 7=11 What value of x makes the equation true? MARK BRAINLY

Mathematics
1 answer:
shusha [124]3 years ago
3 0

\huge\text{Hey there!}

\mathsf{\dfrac{2}{5}x-7=11}

\large\textsf{ADD 7 to BOTH SIDES}

\mathsf{\dfrac{2}{5}x -7+7=11+7}

\large\textsf{CANCEL out: -7 + 7 because that gives you 0}

\large\textsf{KEEP: 11 + 7 because it helps you solve for your x-value}

\mathsf{11 + 7 = 18}

\large\text{New EQUATION: }\mathsf{\dfrac{2}{5}x = 18}

\large\textsf{MULTIPLY }\mathsf{\dfrac{5}{2}}\large\textsf{ to BOTH SIDES }

\mathsf{\dfrac{2}{5}x \times \dfrac{5}{2}=\dfrac{5}{2}\times18}

\large\textsf{CANCEL out: }\mathsf{\dfrac{5}{2}\times\dfrac{2}{5}}\large\textsf{ because it gives you 1}

\large\textsf{KEEP: }\mathsf{\dfrac{5}{2}\times 18}\large\textsf{ because it solves for x}

\large\textsf{New EQUATION: }\mathsf{x =18\times\dfrac{5}{2}}

\mathsf{18\times\dfrac{5}{2}=x}

\mathsf{18\times\dfrac{5}{2}=\bf 45}

\boxed{\boxed{\large\textsf{Answer: \huge \bf Option J. 45}}}\huge\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

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Rina8888 [55]

Answer:

No

Step-by-step explanation:

For a point to be the midpoint of a line segment, it must bisect it into two equal segments and be on the line segment (hence, colinear with the endpoints). All four B points are equidistant from points A and C, but aren’t colinear with A and C. Therefore, they aren’t all midpoints of line segment AC.

I hope this helps! :)

5 0
3 years ago
Can someone help me round these two numbers? I completely forgot how ‍
tigry1 [53]

Answer:

Step-by-step explanation:

If you are rounding to nearest tenth

2.6  1.9

Nearest hundredth

2.6   1.87

If the number to the right of the one you want to round is 5 or above, you go up a number. If it's below, you go down 1.

Hope this helps.

5 0
3 years ago
Answers for both boxes please for 25 points!​
MrRa [10]

Answer:

Step-by-step explanation:

you just need to add both equations

you will get 3y=12+6=18

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y=6

now replace y=6

3x+12=6

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3x=-6

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5 0
3 years ago
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Jennifer spray paint 5 picture frames in 12 minutes. About how long will it take her to paint 98 picture frames
jenyasd209 [6]

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The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.
mote1985 [20]

The confidence interval for the mean usage of water is (18.7,20.5).

Given population standard deviation of 2.4, mean of 19.5 gallons per day and confidence interval of 98%.

We have to find the confidence interval for the mean usage of water.

To find out the confidence interval we have to first find margin of error.

μ=19.5

σ=2.4

α=0.98

α/2=0.49

We have to find the z value for the p value 0.49 which is z=2.33

Margin of error=z*μ/\sqrt{n}

=2.33*19.5/\sqrt{3034}

=0.82

lower level=mean -m

=19.5-0.82

=18.68

after rounding upto 1 decimal

=18.7

upper mean = mean+m

=19.5+0.82

=20.52

Hence the confidence interval for the usage of water is (18.7,20.52).

Learn more about margin of error at brainly.com/question/10218601

#SPJ4

7 0
2 years ago
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