if three ladult where having $180,and two adults out of the three pay$70 each
the third person Will pay $40
You have only two variables X and Y to signify the angles
Together they must equal 90, because its a right triangle and one angle is 90
2X+4=Y
X+Y=90
Solve for Y
Y=90-X
Set the Y's equal to each other
2X+4=90-X
Isolate the X
3X=86
X=~28.66
Y=~61.34
(3s + 270) / 6 <u>></u> 90
s = 90; lowest average score
95+86+89 = 270
(3s + 270) / 6 <u>></u> 90
<u> * 6 * 6</u>
3s + 270 <u>></u> 540
<u> - 270 -270</u>
3s <u>></u> 270
<u>÷3 ÷3</u>
s <u>></u> 90
To check:
(3s + 270)/6 <u>></u> 90
(3(90) + 270)/6 <u>></u> 90
(270 + 270)/6 <u>></u> 90
540 / 6 <u>></u> 90
90 <u>></u> 90