Answer:
(-4,-2)
x=-4
y=-2
Step-by-step explanation:
-3x-4y=20
3(x-10y=16)=3x-30y=48
The reason I multiplied 3 to the second equation is for when we add the equations together the x will cancel out.
-3x-4y=20
+ <u>3x-30y=48</u>
-34y=68
Divide -34 from both sides.
y=-2
To find x you need to plug in -2 for y into one of the equations.
x-10y=16
x-10(-2)=16
Remember a negative times a negative equals a positive.
x+20=16
Subtract 20 from both sides.
x=-4
Hope this helps!
If not, I am sorry.
Answer:
∠ VWU = 48°
Step-by-step explanation:
Since VW and VU are congruent then the triangle is isosceles with 2 base angles being congruent , that is
∠ VWU = ∠ VUW , then
∠ VWU = 
= 
= 48°
Green area - triangle area = 72-9 = 63 square feet
Answer:
0.0277777778
Step-by-step explanation:
Instead of multiplying you divide
