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Yakvenalex [24]
3 years ago
14

Help please... 15 points...one qustion thank you

Mathematics
2 answers:
gavmur [86]3 years ago
5 0

Hello!

Answer: x=\frac{2}{3}

Step-by-step explanation:

7x-\frac{2}{3}=4

Multiply by 3 from both sides of the equation.

7x*3-\frac{2}{3}*3=4*3

Refine.

21x-2=12

Add by 2 from both sides of the equation.

21x-2+2=12+2

Simplify.

21x=14

Divide by 21 from both sides of the equation.

\frac{21x}{21}=\frac{14}{21}

Simplify.

x=\frac{2}{3}

Hope this helps!

Thank you for posting your question at here on brainly.

-Charlie

Anestetic [448]3 years ago
5 0

Answer:

no

Step-by-step explanation:

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Is - 1 half n + 1 whole 1 half + 3 - n equivalent to 3
gavmur [86]

Yes. It is equivalent to 3. Combine like terms

7 0
3 years ago
Please help with A,B for 10 points.
denis-greek [22]

Answer:

y= (C -Ax)/B

x= (C -By)/A

Step-by-step explanation:

Ax+ By = C

solve for y

Subtract AX from each side

Ax+ By - Ax = C-Ax

By = C -Ax

Divide by B

By /B= (C -Ax)/B

y= (C -Ax)/B

solve for x

Subtract By from each side

Ax+ By - By = C-By

Ax = C -By

Divide by A

Ax/A= (C -By)/A

x= (C -By)/A

4 0
3 years ago
Read 2 more answers
A ball is thrown into the air with a velocity of 34 ft/s. It's height in feet after t seconds is given by y=34t-26(t)^2. Find th
kkurt [141]

Answer:

The average velocity of the ball at the given time interval is -122.3 ft/s

Step-by-step explanation:

Given;

velocity of the ball, v = 34 ft/s

height of the ball, y = 34t - 26t²

initial time, t₀ = 3 seconds

final time, t = 3 + 0.01 = 3.01 seconds

At t = 3 s

y(3) = 34(3) - 26(3)² = -132

The average velocity of the ball in ft/s is given as;

V_{avg} = \frac{y(3.01)-y(3)}{3.01 -3}\\\\V_{avg} = \frac{34(3.01)-26(3.01)^2-y(3)}{3.01 -3}\\\\V_{avg} = \frac{-133.223-y(3)}{0.01}\\\\V_{avg} = \frac{-133.223-(-132)}{0.01}\\\\V_{avg} =\frac{-1.223}{0.01}\\\\V_{avg} = -122.3 \ ft/s

Therefore, the average velocity of the ball at the given time interval is -122.3 ft/s

8 0
3 years ago
Find the slope of the line that passes through the two points below."<br> (7,-1) and (9,0)
Stells [14]

Answer:

1/2 or 0.5 (same value, different form)

Step-by-step explanation:

Ok...since I can't actually graph it, we can make a table out of it....

x      y

7     -1

9      0

From -1 to 0, we add 1 (this is for the y section)

From 7 to 9, we add 2 (this is for the x section)

Now all we have to do is divide the y with the x

y/x = 1/2

The slope will be 1/2 (fraction form) 0.5 (decimal form)

Hope this helped!

3 0
3 years ago
HELP URGENT‼️‼️
olchik [2.2K]

Answer:

The answer is 3 cups of orange juice.

Step-by-step explanation:

So basically it says every 1/4 cup of water, you need 3/4 cups of orange juice. Now, 1 cup of water is the same thing as 4/4 cups of water. To get to 4/4 from 1/4, you need to multiply 1/4 by 4. Because of that, you need to multiply 3/4 by 4 as well. 3/4 * 4 is 3, and that's how you get your answer.

3 0
3 years ago
Read 2 more answers
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