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Sloan [31]
4 years ago
7

6. 13 = 3 + 5(2x – 8) How do you do this

Mathematics
2 answers:
AfilCa [17]4 years ago
5 0

Answer:

13/2=X or 6.5=X

Step-by-step explanation:

first you add 5 and 3 then you get 8

second you subtract the 8 you just got from the one in ( ) and you get 13=2x

Third you divide 13 and 2 and when you do that you get 6.5=X but if you not supposed to do it in a decimal form then is 13/2=X

babunello [35]4 years ago
5 0

Answer:

x = 5

Step-by-step explanation:

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What is an equation of the line that passes through the point (2, -6) and is parallel
Karo-lina-s [1.5K]

keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above

x-2y=8\implies -2y=-x+8\implies y=\cfrac{-x+8}{-2} \\\\\\ y=\cfrac{-x}{-2}+\cfrac{8}{-2}\implies y=\stackrel{\stackrel{m}{\downarrow }}{\cfrac{1}{2}}x-4 \qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so we're really looking for the equation of a line whose slope is 1/2 and passes through the point (2 , -6)

(\stackrel{x_1}{2}~,~\stackrel{y_1}{-6})\qquad\qquad \stackrel{slope}{m}\implies \cfrac{1}{2} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-6)}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{2}) \\\\\\ y+6=\cfrac{1}{2}x-1\implies y=\cfrac{1}{2}x-7

5 0
3 years ago
ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are
anygoal [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

\frac{x}{y}=\frac{5}{3}

see the model in the attached figure N 1

so

y=\frac{3}{5}x

y=0.60x

This is the equation of a linear direct variation

The relationship between the variables x and y is proportional

see the model in the attached figure N 2

4 0
3 years ago
Which of the following sets of numbers could not represent the three sides of a right triangle
emmasim [6.3K]

Answer:

40, 75, 85

Step-by-step explanation:

40 squared is 1,600.

75 squared is 5,625.

1,600 + 5,625 = 7,225.

85 squared is 7,225.

5 0
3 years ago
Read 2 more answers
Pleaseee help me....what will the y-coordinate of b' if ab is dilated by a factor of 2/5, centered at the origin. A=(2,2) B=(10,
sdas [7]

Answer:

The y-coordinate of B' is equal to 2

Step-by-step explanation:

step 1

Find the distance of AB

AB=10-2=8\ units

step 2

Find the length of A'B'

Multiply the length of AB by the scale factor

A'B'=8*\frac{2}{5}= 3.2\ units

step 3

Find the midpoint AB

M=(\frac{2+10}{2},\frac{2+2}{2} )

M=(6,2)

step 4

<em>Find the x-coordinate of B'</em>

The x-coordinate of B' is equal to the x-coordinate of midpoint plus the semi distance A'B'

6+\frac{3.2}{2}=6+1.6=7.6

<em>Find the y-coordinate of B'</em>

The y-coordinate of B' is equal to 2 (because is a horizontal line)

3 0
4 years ago
Read 2 more answers
Can some one help me with this
Blizzard [7]

Answer:

273/1000

Step-by-step explanation:

6 0
3 years ago
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