by angle sum property in traingle having ,
$50+70+x=180 \implies x=60^{\circ}$
now, by exterior angle property of triangle, $x+y=60+50$
put $x=60$ to get $y=50$
First, pass all the rate of inflation to ballons/hour
John: 1 b/15s * 3600 s/h = 240 b/h
Jamie: 1 b/20s * 3600 s/h = 180 b/h
Jake: 180 b/h
Then sum the rates to obtain the total rate
Total ballons per hour: 240 b/h + 180 b/h + 180b/h = 600 b/h
If it passes x hours the number of ballons inflated is 600*x
The number of ballon defective are 600*x/80
The number of ballons effectiveley inflated = 600x -600x/80 = 600x - 7.5x = 592.5x.
Answer: option A)
Slope is cost per arrangement so 3+10d
0 arrangements cost 0 dollars so there is no y-intercept.
Thus we get C=(3+10d)x where x is the number of arrangements
<h2>... Answer is in the pictures above... </h2><h3>... Hope this will help... </h3>
X Intercepts - (-7,0)
Y Intercepts - (0,9)
Hope this helps!