Start by isolating one of the variables
x=-4y+2
Sub x into the other formula and solve for the y value of the solution.
3(-4y+2)+2y=11
-12y+6+2y=11
-12y+2y=11-6
-10y=5
y=-1/2
Sub the y value into the x formula you created.
x=-4(-1/2)+2
x=2+2
x=4
Therefore the solution is (4,-1/2) I think the answer is B unless the y value is actually -12.
Hope this helps :)
Use your knowledge of place value to write your fraction
3 and 375/1000
now reduce. Both are divisible by 25.
3 15/40
oops, not done yet... we can still divide by 5
3 3/8
Done!
60(pi/180)=pi/3
.5(12^2)(pi/3)
72(pi/3)
24pi
