10. The ratio of red marbles to purple marbles is 3:8. If there are 44marbles, how many purple marbles are there? *

Answers

Answer 1
Answer:

Answer:

32 purple marbles.

Step-by-step explanation:

Turn 3:8 into 3x+8x.

Equation:

3x+8x=44

x=4

Now, refer back to 3x:8x. We know that x=4, so 4*8=32.

32 purple marbles.

Answer 2
Answer:

Answer:

There are 32 purple marbles and 12 red marbles

Step-by-step explanation:

The ratio is 3:8 and the total is 44. For 3 red marbles, they have 8 purple marbles but we don't know how many each marble we need if the total sum is 44. So we do...

3x+8x=44

11x=44

x=4

We need to know the number of purple marbles so we do,

8*4=32


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Whats the answer pls ?

Answers

Answer:

y = -8

Step-by-step explanation:

Y2 - Y1/ X2 - X1

-8 - (-8) / -1 - (-8)

0 / 7

m = 0

y = mx + b

-8 = 0(-8) + b

-8 = 0 + b

-8 = b

y = -8

A local bowling alley charges $3 per game, plus $5 to rent a pair of shoes. Write an algebraic expression that models the cost of renting one pair shoes and bowling g games.

Answers

Answer:

5+3g

Step-by-step explanation:

This is because you pay $5 for shoes and $3 per game. Since the amount of games is unknown you put g.

A high school principal randomly polls 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors regarding policy changes for after-school activities. What type of sampling method is used?

Answers

Answer: its systematic sampling

Step-by-step explanation:

Systematic sampling is a type of technique for creating a random probability sample in which each piece of data is chosen at a fixed interval for inclusion in the sample.

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10. what is the value of y when x=6?

Answers

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10 then the value of y is 12 when x =6.

The two points from the given information are (0, 4) and (3, 10).

Let us find the slope = (10-4)/(3-0)

=6/3

=2

Now let us find the y intercept to write the equation in slope intercept form.

Consider the point (0, 4) to find y intercept.

Plug in the point values in slope intercept form:

4=2(0)+b

Solve for b:

b=4

The equation in slope intercept form is y=2x+4.

Now let us find the value of y when x=6.

Plug in x as 6 in the equation y=2x+4.

y=2(6)+4

y=12+4

y=16

Hence, the value of y is 16 when x is 6.

To learn more on Rate of change click:

brainly.com/question/29181688

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We know x+y=0; so, if x=6 y= -6

Find the lowest common multiple of 124 and 200. The LCM of two numbers is 130.

Answers

Answer:

1. 6,200

2. 13 and 26

Step-by-step explanation:

Which polynomials are prime? Check all that apply.15x2 + 10x – 9x + 7
20x2 – 12x + 30x – 18
6x3 + 14x2 – 12x – 28
8x3 + 20x2 + 3x + 12
11x4 + 4x2 – 6x2 – 16

Answers

Prime polynomials are those polynomials that are not factored into lower degree polynomial. The options that are prime polynomials are 1), 4), and 5).

Evaluate all options in order to check that the polynomials are prime or not:

1). 15x^2  +10x -9x+7

5x(3x + 2) - (9x - 7)

So, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

2). 20x^2-12x+30x-18

4x(5x - 3)+6(5x-3)

(4x + 6)(5x - 3)

So, this polynomial is converted into a lower degree polynomial. Therefore, it is not a prime polynomial.

3). 6x^3+14x^2-12x-28

2x^2(3x+7)-4(3x+7)

(2x^2-4)(3x+7)

So, this polynomial is converted into a lower degree polynomial. Therefore, it is not a prime polynomial.

4). 8x^3+20x^2+3x+12

4x^2(2x+5)+(3x+20)

So, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

5). 11x^4+4x^2-6x^2-16

x^2(11x^2+4)-2(3x^2+8)

So, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

For more information, refer to the link given below:

brainly.com/question/20121808

Answer:

The prime polynomials are 1, 4 and 5

Step-by-step explanation:

Given some polynomials we have to classify the polynomials prime or not.

Prime polynomials are the polynomial with integer coefficients that cannot be factored into lower degree polynomials.

15x^2 + 10x - 9x + 7

5(3x+2)-(9x-7)

can't be factored into lower degree polynomial ∴ prime polynomial.

20x^2 - 12x + 30x - 18

4x(5x-3)+6(5x-3)

(4x+6)(5x-3)

hence, not a prime polynomial.

6x^3 + 14x^2 - 12x - 28

2x^2(3x+7)-4(3x+7)

(2x^2-4)(3x+7)

hence, not a prime polynomial.

8x^3 + 20x^2 + 3x + 12

4x^2(2x+5)+(3x+20)

can't be factored into lower degree polynomial ∴ prime polynomial.

11x^4 + 4x^2 - 6x^2 - 16

x^2(11x^2+4)-2(3x^2+8)

can't be factored into lower degree polynomial ∴ prime polynomial.

The prime polynomials are 1, 4 and 5