In a toothpaste survey,5 of the first 15 people surveyed preferred the same toothpaste. If 30 people will be surveyed altogether, predict the number of people who will prefer a different toothpaste. Give a reason to support your answer

20 people will preferf a different toothpase and 10 people will perfer same.

5 is same and 10 is different.

Total 15 People so that mean if we want to survey 30 people, we will want to 15 x 2. Then that mean result will be duoble.

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation:

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true