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3 years ago

50% of what number is 30?

Mathematics

1 answer:

mote1985 [20]3 years ago

3 0

I hope this helps you

%50.?=30

50/100.?=30

1/2.?=30

?=30.2

?=60

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Y=2x-5<br> 3x+8y+32=56 <br> What does y and x equal?

AVprozaik [17]

Y = 2x - 5
3x + 8y + 32 = 56
3x + 8(2x - 5) + 32 = 56
3x + 8(2x) - 8(5) + 32 = 56
3x + 16x - 40 + 32 = 56
19x - 8 = 56
<u>      + 8   + 8</u>
   <u>19x</u> = <u>64</u>
      19    19
   x = 3.4
y = 2(3.4) - 5
y = 6.8 - 5
y = 1.8
(x, y) = (3.4, 1.8)

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3 years ago

Who could help me with this please and thank you

kkurt [141]

Answer:

Step-by-step explanation:

let the number be x

so according to the question ur equation is

4x=5<x^2

4x-5=x^2

4-5=x^2/x

-1=x

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3 years ago

Select the two equivalent expressions.

Allushta [10]

Answer:

B. and D.

B. 10m+3m+m+10+6=4m+16

D. 4(m+4)=4m+16

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3 years ago

What is x+y=10;y=x+10

Alenkasestr [34]

[ Answer ]

$\boxed{\bold{X \ = \ 0, \ Y \ = \ 10}}$

[ Explanation ]

System Of Equations $\bold{\left \{ {X \ + \ Y \ = \ 10} \atop {Y \ + \ X \ = \ 10}} \right.}$

-----------------------------------

[Substitute] Y = X + 10

$\bold{\begin{bmatrix}x+x+10=10\end{bmatrix}}$

Isolate x for x + x + 10 = 10: x = 0

For y = 10

Substitute x = 0

Y = 0 + 10

0 + 10 = 10

y = 10

Solutions

X = 0

Y = 10

$\boxed{\bold{[] \ Eclipsed \ []}}$

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3 years ago

Geometry segment proofs

Lemur [1.5K]

solving a linear equation we conclude that the value of x must be 6.

<h3>How to find the value of x?</h3>

On the statement we have the relations:

AB = BC

BC = CD

For the transitive property, then we have that:

AB = CD

Replacing the equations in the image, we get:

2x + 1 = 4x - 11

Solving this linear equation for x we get:

1 + 11 = 4x - 2x

12 = 2x

12/2 = x

6 = x

So yes, solving that linear equation we conclude that the value of x must be 6.

Learn more about linear equations:

brainly.com/question/1884491

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1 year ago