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3 years ago

|-5c+5|=40 solve for c

Mathematics

2 answers:

Gnoma [55]3 years ago

7 0

-5c+5=40 or -5c+5=-40
-5c=35 ... so C = -7
-5c= -45 so C = 9

GrogVix [38]3 years ago

5 0

Answer:

C=9 or c=-7

Step-by-step explanation:

|-5c+5|=40

-5c+5=-40 or - 5c+5=40

-5c=-40-5. - 5c=40-5

-5c=-45. - 5c=35

C=9. C=-7

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STALIN [3.7K]

Answer using quadratic formulae=5/4 and -4

6 0

3 years ago

Someone please help meee

zzz [600]

B = -16
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6 0

3 years ago

Factor 81a^2b^4-c^6 completely

olga nikolaevna [1]

Answer: (9ab^2+c^3)(9ab^2-c^3)

Step-by-step explanation:

81a^2b^4-c^6

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3 0

3 years ago

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kicyunya [14]

Answer:

x= -4

Step-by-step explanation:

=> 1+2x= 4x+9

=> 1-9=4x-2x

=> -8 = 2x

=> x = -8/2

=> x= -4

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6 0

2 years ago

Read 2 more answers

Type the correct answer in each box. If necessary, use / for the fraction bar(s).

Tom [10]

Given:

The values are $a=0.\overline{6},b=0.75$ .

To find:

The values of $ab$ and $\dfrac{a}{b}$ .

Solution:

We have,

$a=0.\overline{6}$

$a=0.666...$ ...(i)

Multiply both sides by 10.

$10a=6.666...$ ...(ii)

Subtracting (i) from (ii), we get

$10a-a=6.666...-0.666...$

$9a=6$

$a=\dfrac{6}{9}$

$a=\dfrac{2}{3}$

And,

$b=0.75$

$b=\dfrac{75}{100}$

$b=\dfrac{3}{4}$

Now, the product of a and b is:

$ab=\dfrac{2}{3}\times \dfrac{3}{4}$

$ab=\dfrac{1}{2}$

The quotient of a and b is:

$\dfrac{a}{b}=\dfrac{\dfrac{2}{3}}{\dfrac{3}{4}}$

$\dfrac{a}{b}=\dfrac{2}{3}\times \dfrac{4}{3}$

$\dfrac{a}{b}=\dfrac{8}{9}$

Therefore, the required values are $ab=\dfrac{1}{2}$ and $\dfrac{a}{b}=\dfrac{8}{9}$ .

6 0

3 years ago