3 plus 6 times the number of white marbles for a total of 15

1 answer:

5 0

The problem is 3+6x = 15 with x being the number of white numbers.
Isolate variable by subtracting 3 on both sides: 6x = 12.
Isolate variable by dividing 6 on both sides: x = 2
The number of white marbles is 2.

You might be interested in

Plz help me!!!!!!!!!

Over [174]

Answer: $\bold{\dfrac{4\pm \sqrt{6}}{2}}$

<u>Step-by-step explanation:</u>

$\dfrac{3}{y-2}-2=\dfrac{1}{y-1}\\\\\\\text{Multiply by the LCD (y-2)(y-1) to clear the denominator:}\\\\\dfrac{3}{y-2}(y-2)(y-1)-2(y-2)(y-1)=\dfrac{1}{y-1}(y-2)(y-1)\\\\\\3(y-1)-2(y-2)(y-1)=1(y-2)\\\\3y-3-2(y^2-3y+2)=y-2\\\\3y-3-2y^2+6y-4=y-2\\\\-2y^2+9y-7=y-2\\\\0=2y^2-8y+5\quad \rightarrow \quad a=2,\ b=-8,\ c=5\\\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(-8)\pm \sqrt{(-8)^2-4(2)(5)}}{2(2)}\\\\\\.\ =\dfrac{8\pm \sqrt{64-40}}{2(2)}$

$.\ =\dfrac{8\pm \sqrt{24}}{2(2)}\\\\\\.\ =\dfrac{8\pm 2\sqrt{6}}{2(2)}\\\\\\.\ =\dfrac{4\pm \sqrt{6}}{2}$

7 0

3 years ago

The angle measures of triangle ABC are given:

laila [671]

Answer:

X=20

Explanation:

7 0

3 years ago

A test of the breaking strength of 6 ropes manufactured by a company

erastovalidia [21]

Answer:

RESULTS: The study revealed that a 1% increase in access to improved sanitation would reduce infant mortality by a rate of about two infant deaths per 1000 live births.

4 0

3 years ago

100 points and brainly, put nonsense and get reported: Task Information: In 2019, Jose joined an online video game streaming ser

Vladimir79 [104]

Answer:

time yearly fee of $12.75, and it costs $0.75 per a game (g) that he plays.

Part A: Write an expression that reflects the yearly fee and cost per game (g) that Jose paid.

Step-by-step explanation:

Jose spent $105.75 playing games using Owl. Using the expression from part A and his total spending for 2020,

6 0

2 years ago

Let x be a discrete random variable that possesses a binomial distribution with n=5 and p=0.87. What are the mean and standard d