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3 years ago

What is the initial value of the equation shown?

Mathematics

1 answer:

solniwko [45]3 years ago

6 0

Answer:

your answer is -5

Step-by-step explanation:

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2 x + 5 = 10 what is x =?

MrMuchimi

Answer:

x= $\frac{5}{2}$

Step-by-step explanation:

First, subtract 5 on both sides since when you subtract 5 from 5, it will give you 0.

Basically we are trying to get rid of the +5.

2x+5-5=10-5

2x=5

Divide by 2 to get rid of the 2 that is combined with the x.

2x/2=5/2

x= $\frac{5}{2}$

5 0

3 years ago

Read 2 more answers

Need help with finding the value of x:- <img src="https://tex.z-dn.net/?f=7x-4%3D3%2B8x" id="TexFormula1" title="7x-4=3+8

kiruha [24]

$\underline{\boxed{\red{\:Solution}}}$

==> 7x - 4 = 3 + 8x

==> 8x - 7x = -4 - 3

==> x = -7 [ Ans ]

5 0

2 years ago

Read 2 more answers

Amanda uses a rectangular canvas for a panting. The length is 6x-3 centimeters The width is 2x+6 centimeters,and is 4/5of the le

julia-pushkina [17]

Answer:

15 cm by 12 cm.

Step-by-step explanation:

Given:

Amanda uses a rectangular canvas for a panting.

The length is $6x-3$ centimeters.

The width is $2x+6$ centimeters, and is 4/5 of the length .

Question asked:

.What are the dimensions of the canvas ?

Solution:

As given that the width is $\frac{4}{5}$ of the length.

$2x+6=\frac{4}{5} (6x-3)\\ \\ 2x+6=\frac{4}{5}\times6x-\frac{4}{5}\times3\\ \\ 2x+6=\frac{24x}{5} -\frac{12}{5} \\ \\$

Adding both sides by $\frac{12}{5}$

$2x+6+\frac{12}{5} =\frac{24x}{5} -\frac{12}{5}+\frac{12}{5}\\ \\ 2x+\frac{42}{5} =\frac{24x}{5}$

Subtracting both sides by $2x$

$2x-2x+\frac{42}{5} =\frac{24x}{5} -2x\\ \\ \frac{42}{5} =\frac{24x-10x}{5} \\ \\ \frac{42}{5} =\frac{14x}{5} \\ \\$

By cross multiplication:-

$5\times14x=5\times42\\ \\ 70x=210\\ \\$

By diving both sides by 70

$x=3$

Now, substituting the value:-

The length = $6x-3$ cm

= $6\times3-3=18-3=15\ cm$

The width = $2x+6$ cm

= $2\times3+6=6+6=12\ cm$

Thus, length and width of canvas are 15 cm and 12 cm.

7 0

3 years ago

Find f '(a). f(x) = 4x2 − 4x + 3

Vinvika [58]

Use the power rule
d(x^n)/dx = n·x^(n-1)
to form the derivative.
f'(x) = 4·2x -4
f'(x) = 8x - 4

Now, substitute "a" for "x" to find f'(a):
f'(a) = 8a - 4

3 0

3 years ago

HEY! GOT A BUTT LOAD OF HW DUE TOMORROW PLS HELP BRAINLIEST ANSWER INCLUDED! Solve. How much pure acid is in 520 milliliters of

Rama09 [41]

540ml with 12% solution

get 12% of 540

540 times 0.12 = 64.8 ml of pure acid

3 0

3 years ago