All categories

3 years ago

Solve for x please help (show ur work)

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

8 0

Answer:

x = -3

Step-by-step explanation:

12 - 4x - 5x = 39

Combine like terms

12 - 9x = 39

Subtract 12 from both sides

12 - 12 - 9x = 39 - 12

-9x = 27

Divide both sides by -9

-9x/-9 = 27/-9

x = -3

Zanzabum3 years ago

3 0

Answer:

x = -3

Step-by-step explanation:

12 -4x-5x = 39

Combine like terms

12 - 9x = 39

Subtract 12 from each side

12-9x-12 = 39-12

-9x = 27

Divide by -9

-9x/-9 = 27/-9

x = -3

You might be interested in

rika and Nadia are planning their epic summer road trip across North America from Jackson, Wyoming. The plan is to pilot their c

coldgirl [10]

Answer:

Joe mama

Step-by-step explanation:

5 0

3 years ago

Mr. Casey writes the equation 40 = 16 + 24 = a(b + c). What whole

Nimfa-mama [501]

Answer:

$a=8,b=2,c=3$

Step-by-step explanation:

Given:

$40=16+24=a(b+c)$

Now, in order to write 16 + 24 into a product of two numbers, we need to find the factors of 16 and 24.

Factors of 16 = 1, 2, 4, 8, 16.

Factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24.

Now, common factors for 16 and 24 are 1, 2, 4 and 8.

Now, the values of $b\textrm{ and }c$ should be such that there should be no common factors between them except 1. In other words, $b\textrm{ and }c$ are prime numbers.

So, in order to get prime numbers for $b\textrm{ and }c$ , we should take the greatest common factor for 16 and 24 which is 8.

Therefore 40 = 16 + 24 can rewritten as:

$16+24=8(2+3)$

So, $a=8,b=2,c=3$

5 0

4 years ago

Which quadratic equation has roots - 2 and 1/5 :

Sladkaya [172]

Answer:

$5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0$

Step-by-step explanation:

$sum \: of roots = - 2 + \frac{1}{5} = - \frac{8}{5} \\ product \: of \: roots = - 2 \times \frac{1}{5} = - \frac{2}{5} \\ from \: general \: equation \\ a {x}^{2} + bx + c = 0 \\ {x}^{2} + \frac{8}{5} x \: - \frac{2}{5} = 0 \\ 5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0$

7 0

3 years ago

When compared with the independent variable, how many of the graphs represent a linear relationship?

strojnjashka [21]

Since a slope differe, this is not linear relationship. Simply, if you connect all points on the graph, they will not lie on the same line. Two next graphs represent the linear relationships, so they represent the linear relationship.

8 0

3 years ago

PLEASE HELPPPPPPP What is the approximate area of the shaded region?

KATRIN_1 [288]

Answer:

69.53

Step-by-step explanation:

I did it on my calculator.

3 0

2 years ago