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)
Answer:
1. 3
Step-by-step explanation:
For the first one, you have to follow m(slope)=y2-y1/x2-x1.
So in this case for the first one, it's 4-(-2)/3-(1) which is 3.
Answer:y would equal 2 because when you put a symbol/number next to a number/variable you multiply the two #s/variables and 8x2 would equal 16
Step-by-step explanation:
if we divide 16 by 8000, we get 0.002
Times 0.002 with 100, and you will get your percent
0.002*100=0.2
16 is 0.2% of 8000
Answer:
37.5
Step-by-step explanation:
88% of x = 33
88/100 X x = 33 (X = multiply)
0.88x = 33
x = 33/0.88
x = 37.5
100% of 37.5 = 37.5
