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3 years ago

3х – 4 + 20 = 55 What is the answer to this

2 answers:

5 0

So you first do -4+20=16 then you subtract 16,from 55 and get it out of your equation what you have left is 3x=39 then you simplify that by dividing both sides by 3 and your answer is 13

Ghella [55]3 years ago

4 0

Answer:

x = 13

Step-by-step explanation:

3х – 4 + 20 = 55

3x (-4 + 20) = 55

3x + 16 = 55

Subtract 16 from both sides

3x = 39

Divide by 3 on both sides

x = 13

Hope this helps :)

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s344n2d4d5 [400]

Answer:

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Step-by-step explanation:

$\because m\widehat{BG} = 360\degree - m\widehat{GCB} \\\therefore m\widehat{BG} = 360\degree - 300\degree \\\therefore m\widehat{BG} = 60\degree \\\because m\widehat{BGD} = m\widehat{BG} +m\widehat{GD}\\\therefore m\widehat{BGD} = 80\degree+60\degree\\\therefore m\widehat{BGD} = 140\degree\\\because m\angle BAD = m\widehat{BGD} \\\huge\purple {\boxed {\therefore m\angle BAD =140\degree}}$

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3 years ago

Segment CD has endpoints (-4, 3) and (8, -1). Find the coordinates of the point that divides the line segment directed from C to

Diano4ka-milaya [45]

Answer:

$A(0.8,\ 1.4)\ \text{or }\ A\left(\dfrac{4}{5},\dfrac{7}{5}\right)$

Step-by-step explanation:

If point $A(x,y)$ divides the segment with endpoints $C(x_1,y_1)$ and $D(x_2,y_2)$ in the ratio $m:n,$

then

$x=\dfrac{nx_1+mx_2}{m+n}\\ \\y=\dfrac{ny_1+my_2}{m+n}$

In your case,

$C(-4,3)\\ \\D(8,-1)\\ \\m:n=2:3$

then

$x=\dfrac{3\cdot (-4)+2\cdot 8}{2+3}=\dfrac{-12+16}{5}=\dfrac{4}{5}=0.8\\ \\y=\dfrac{3\cdot 3+2\cdot (-1)}{2+3}=\dfrac{9-2}{5}=\dfrac{7}{5}=1.4$

Thus,

$A(0.8,\ 1.4)\ \text{or }\ A\left(\dfrac{4}{5},\dfrac{7}{5}\right)$

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3 years ago

What is the area of a triangle with a base of 9 inches and a height of 20 inches?

andrew11 [14]

Answer:

A=90

Step-by-step explanation:

The area of a triangle with a base of 9 inches and a height of 20 inches is 90 inches.

Formula: A=hbB/2

A = hbB/2 = 20·9/2 = 90

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3 years ago

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steposvetlana [31]

Probability of getting a Head = 1/2

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4 years ago

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