X + 3y = 7
x = -3y + 7
2x + 4y = 8
2(-3y + 7) + 4y = 8
-6y + 14 + 4y = 8
-6y + 4y = 8 - 14
-2y = - 6
y = -6/-2
y = 3
x + 3y = 7
x + 3(3) = 7
x + 9 = 7
x = 7 - 9
x = -2
solution is (-2,3)
Take the two shapes separately:
Rectangle:
l x w = A
22 x 17 =?
Triangle:
.5b x h = A
.5(12) x 19 = ?
A of Triangle + A of Rectangle = total Area
It's the second option, because the signs are facing each other & it's underlined. That's why the circles are shaded in, the inequality means the numbers between -4 & 3 are what is needed. Hope that helps
