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3 years ago

What is the solution to the equation 5(x + 4) = 5x – 3?

Mathematics

2 answers:

vodka [1.7K]3 years ago

8 0

Answer: C, there is no solution

Step-by-step explanation:

First you want to distribute on the left side of the equation. 5(x+4) = 5x - 3 when distributed becomes 5x + 20 = 5x - 3. Next you want to get rid of the variable on one side, but since its the same, when you subtract 5x from both sides you get 20 = -3, which is not equal, meaning there is no solution.

Alex73 [517]3 years ago

6 0

$5(x+4)=5x-3\\5x+20=5x-3\\5x+20-5x+3=0\\0+23=0\\23=0$

So the answer is C. There is no solution, because the equation is false

A and B choices both have the answer, the value of x.

D choice only when the equation is true like 2=2.

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The larger of two numbers is eight more than three times the smaller number. The sum of the two numbers is fifty-two. Find the t

Dmitry [639]

So... we have two numbers
say "a" and "b"

one is larger than the other, let us say, "b" is larger than "a"
by how much?
well, "<span>eight more than three times"
three times the smaller is 3 * a, or 3a
eight more than that is 3a + 8

so b = 3a+ 8
the sum of both of them is 52
so, we know that

a + b = 52

run a substitution on "b" on the 2nd equation, and solve for "a"
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3 years ago

Which pair of angles in the figure below are vertical angles? Check all that apply

Firdavs [7]

Answer:

Step-by-step explanation:

and

< SYL and <EYA

Step-by-step explanation:

Vertical angles can be defined as the pair of angle which are opposite when two lines crosses, as the image attached shows.

Now, <EYL and <AYS are vertical angles, because they are opposite when lines ES and AL cross at point Y.

Another pair of vertical angles are <SYL and <EYA, because they are opposite when lines ES and AL cross at point Y.

Therefore, all pair of angles which are vertical angles are

<EYL and <AYS

< SYL and <EYA

REMENBER : VERTICAL LINEA

8 0

3 years ago

Hi I am so stuck on this question pls help

s2008m [1.1K]

Answer:

4500 cm²

Step-by-step explanation:

10 mm = 1 cm

So 450 × 10

= 4500 cm²

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3 years ago

Find the slope of the line y=3/4x + 4

Katen [24]

Answer:

m= $\frac{3}{4}$

Step-by-step explanation:

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3 years ago

X = 1 + root 2 , find the value of (x - 1/x )^3

steposvetlana [31]

Answer:

$(\sqrt{2})^3$

Step-by-step explanation:

Given the expression

$(x - \frac{1}{x} )^3$

Simplify

$(\frac{x^2-x}{x} )^3$

Given that x = 1+√2

Substitute

$(\frac{(1+\sqrt{2} )^2-(1+\sqrt{2} )}{1+\sqrt{2} } )^3\\=( \frac{1+2\sqrt{2} +2 - 1 - \sqrt{2}}{1+\sqrt{2}} )^3\\= (\frac{\sqrt{2}+2}{1+\sqrt{2}})^3 \\Rationalize\\= (\frac{\sqrt{2}-2+2-2\sqrt{2}}{1-2})^3 \\=( \frac{-\sqrt{2}}{-1})^3 \\= (\sqrt{2})^3\\ \\$

7 0

3 years ago