Asurvey determined that 7/18 of the seventh grade students at mills middle school preferred round chocolate candies to hard candy. when jennifer duplicated the survey, 1/9 of the students changed their preference from chocolate candy to hard candy. what fraction of the students in the second survey preferred round chocolate candy? a. 8/27 b. 7/162 c. 5/ 18 d. 1/2

The correct answer is C) 5/18

Step-by-step explanation:

In order to find this answer, you need to take the fraction that answered it on the first try and subtract the number that changed their mind.

7/18 - 1/9

In order to complete this operation, you need to give them common denominators.

7/18 - 2/18 = 5/18

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

1. perpendicular

2. parallel

3. perpendicular