Answer:
x=5, y=6. (5, 6).
Step-by-step explanation:
-6x+6y=6
-6x+3y=-12
---------------
simplify -6x+6y=6 into -x+y=1 and y=1-(-x)=1+x
-6x+3(1+x)=-12
-6x+3+3x=-12
-3x=-12-3
-3x=-15
3x=15
x=15/3
x=5
-6(5)+6y=6
-30+6y=6
6y=6-(-30)
6y=6+30
6y=36
y=36/6
y=6
try your best i dont understand it propely
Answer:
8%
Step-by-step explanation:
Initial attendance = 2000
New attendance record = 1840
Percentage decrease in attendance :
((Initial - new attendance record) / initial attendance) * 100%
((2000 - 1840) / 2000) * 100%
(160 / 2000) * 100%
0.08 * 100%
8%
8% decrease in attendance
Answer:
$13.61
Step-by-step explanation:
$18 * 70% = $12.60
$12.60 * 1.08 = $13.61
18=2*3*3
36=2*2*3*3
90=2*3*3*5
g.c.f=2*3*3=18