For this problem, you kind of have to work backwards. The first step is figuring out what percentage of 900 is 225--this way we can find out what percentage we need to take from the sample of 48. In order to find the percentage:
225 / 900 = 0.25 or 25% < this is the percentage of students the administrator predicts will be in favor of the dress code. Now we can assume that this means 25% of the original 48 asked were in favor.
So now, we need to find 25% of 48:
48 x 0.25 = 12 < this is the number of students out of the original 48 who were in favor of the new dress code.
Answer: 12 students
Answer:
Imma cry.
Step-by-step explanation:
But thx for the free points.
Hope you have a wonderful day/night!!!!!
Brainliest, please?!?!
2x + 3y < -3 ⇒ 2x + 3y = -3 ⇒ 2x + 3y = -3
-4x + y ≥ 2 ⇒ -4x + y = 2 ⇒ <u>-12x + 3y = 6</u>
<u>-14x</u> = <u>-9</u>
-14 -14
x = ⁹/₁₄
2x + 3y = -3
2(⁹/₁₄) + 3y = -3
1²/₇ + 3y = -3
<u>- 1²/₇ - 1²/₇
</u> <u>3y</u> = <u>-4²/₇
</u> 3 3
y = -1³/₇
The solution set is {(⁹/₁₄, -1³/₇)}.
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answer and explanation are in the picture.