13.5 bc x equal 2.7 so you multiply it by 5
That question is hard try google that always helps me
The system of linear inequalities x + 10y ≤ 80, x ≥ 30 and y ≤ 4 is represented in a graph below
<h3>Graph of Linear Inequality</h3>
The graph of an inequality in two variables is the set of points that represents all solutions to the inequality. A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality.
To solve this problem, we would require the use of graph which can easily be done with a graphing calculator.
x + 10y ≤ 80
x ≥ 30
y ≤ 4
The graph of the inequalities is attached below
Learn more on graph of linear inequality here;
brainly.com/question/19443475
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Step-by-step explanation:
Given data
let adults be x
and student be y
so
6x+15y= 48-----------1
and
8x+7=38-----------2
solve eqn 1 and 2
6x+15y= 48-----------1X 8
8x+7=38-----------2X 6
48x
+15y= 40
48x+7y= 38
subtract
8y=2
y= 2/8
y= 1/4
y= $0.25
from 8x+7=38
put y= 0.25
8x+7(0.25)=38
8x+1.75= 38
8x=38-1.75
8x=36.25
x=36.25/8
x=$4.5