Need help with this tank you

187

Step-by-step explanation:

Total People: 321

Total People Younger than 10 years old: 134

Take the total people and subtract all people younger than 10 years old. All you have left is people who are NOT younger than 10 years old.

321(Total People) - 134(People younger than 10 years old) = 187 people NOT younger than 10 years old.

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!