Which graph represents the solution to the system of inequalities?
x + y ≤ 50
x ≥ 20

Fourth graph.

Step-by-step explanation:

Using demos calculator we plot the graph.

Orange Shaded area shows the equation :

Blue area shows the equation:

Refer the attached image

The solution of the equations is (20,30) and (50,0)

The fourth graph shows the same solutions.

So, Graph 4 is correct.

Hence fourth graph represents the solution to the system of inequalities.

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: