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Andreas93 [3]
3 years ago
10

Ax+bx-c=0 x= _/(a __)

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

x = \frac{c}{a+b}

given ax + bx - c = 0 ( add c to both sides )

ax + bx = c ( take out a common factor of x on the left side )

x(a + b) = c ( divide both sides by (a + b) )

x = \frac{c}{a+b}


Ulleksa [173]3 years ago
4 0
Ax+bx−c=0

Step 1: Add c to both sides.

ax+bx−c+c=0+c

ax+bx=c

Step 2: Factor out variable x.

x(a+b)=c

Step 3: Divide both sides by a+b.

x(a+b)a+b=ca+b

x=ca+b

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Use the Distributive Property to write 2(-5+3) as an equivalent expression.
Schach [20]
The correct answer is B: -4
5 0
3 years ago
Determine the factors of x2 − 7x − 10. (5 points) a (x + 2)(x − 5) b Prime c (x − 2)(x + 5) d (x + 10)(x − 1)
Savatey [412]

For this case we must factor the following expression:

x ^ 2-7x-10

To factor, we must find two numbers that when added together give -7 and when multiplied by -10.

It is observed that there are not two whole numbers that comply with the aforementioned.

Thus, the following equation applies:

x = \frac {-b \pm\sqrt{b ^ 2-4 (a) (c)}} {2 (a)}

Where:

a = 1\\b = -7\\c = -10

We replace:

x = \frac {- (- 7) \pm \sqrt {(- 7) ^ 2-4 (1) (- 10)}} {2 (1)}\\x = \frac {7 \pm \sqrt {49 + 40}} {2}\\x = \frac {7 \sqrt {89}} {2}

So, the roots are:

x_ {1} =\frac {7+ \sqrt {89}} {2}\\x_ {2} =\frac {7- \sqrt {89}} {2}

Answer:

x_ {1} =\frac {7+ \sqrt {89}} {2}\\x_ {2} =\frac {7- \sqrt {89}} {2}

6 0
3 years ago
Julie is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour.
Maksim231197 [3]
She spent 17 hours tutoring

$210 = 7 hours

$20 x 10 hours = $200

$210 + $200 = $410
7 Hours + 10 Hours = 17 Hours

8 0
3 years ago
Read 2 more answers
THis is kinda hard, pls help ASAP
Feliz [49]

Answer:

yep this kinda hard!!!!!!!!!!!!?!??!

7 0
3 years ago
If f(x) = 2x – 6 find f(7) - 9. *
evablogger [386]

Answer:

-1

Step-by-step explanation:

Plug 7 in for wherever there's an "x."

f(x) = 2(7) - 6

f(x) = 14 - 6

f(x) = 8

Now subtract 9 from 8.

8 - 9 = -1

6 0
3 years ago
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