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2 years ago

Please tell me the answers and how you got the ansers

Mathematics

2 answers:

Marina CMI [18]2 years ago

7 0

To add the pics you have to click 'edit' by the bottom left of your question :D

Zielflug [23.3K]2 years ago

5 0

Where is the problem that we have to solve

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Please help!!<br><br> The solution of the equation is x = ?<br> .

LUCKY_DIMON [66]

Answer:

as below

Step-by-step explanation:

$\frac{2}{7}$ = $\frac{6x}{4x + 17}$

2(4x + 17) = 7(6x)

8x +34 = 42x

34 = 42x-8x

34 = 34x

$\frac{34}{34}$ = x

1 =x :)

5 0

3 years ago

Two lengths of a triangle are shown

Luden [163]

The length of BC would be 6ft

3 0

3 years ago

Last question please help me

Inessa [10]

Answer: OPTION D

Step-by-step explanation:

The formula for calculate the surface area of a rectangular prism is:

$SA_{rp}=2(wh+lw+lh)$

Where w is the width, h is the height and l is the length.

You can see in the figure attached that:

l=3.4ft

w=3ft

h=4.1ft

Therefore, when you substitute these values into the formula you obtain that the surface area is:

$SA_{rp}=2[(3ft*4.1ft)+(3.4ft*3ft)+(3.4ft*4.1ft)]=72.88ft^{2}$

3 0

2 years ago

A pair of equations is shown below:

horrorfan [7]

Answer:

A. x=2, y = 7.

B. (2, 7).

Step-by-step explanation:

A. You can eliminate y by subtracting the equations:

y = 8x - 9

y = 4x - 1 Subtract:

0 = 4x - 8

4x = 8

x = 8/4 = 2.

Now substitute for x in the first equation:

y = 8(2) - 9 = 7.

Check in the second equation:

y = 4x - 1

7 = 4(2) - 1 = 7. Check is OK.

B. On the graph they will intersect at the point (2, 7).

They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.

4 0

3 years ago

−px+r=−8x − 2, x=?<br> now i have to do this problem, and i dont know how, help?

Taya2010 [7]

-px + r = - 8x - 2

-px + r + 8x +2 = 0

-px +8x = -r -2

x(8-p) = -r -2

x= $\frac{8-p}{-r-2}$ =

$\frac{8-p}{-r-2}$

3 0

2 years ago