C.the height of a student and the the day of a month a student was born
It is D because all the numbers range from 12 to 23, with no number being extremely low or high compared this range.
It is 24 liters
100%=15
increase by 60%
100 + 60 = 160
160% of 15
15 x 1.60 =24
Answer:
2. is not an equation
Step-by-step explanation:
An equation always has an equal sign. An expression doesn't
Step-by-step explanation:
1) 2x+3y-3y=1-3y. -x+2y= -4
2x/2=1-3y/2. -(1-3y/2)=-4
x=1-3y/2. -1+3y/2= -4
x=1-3(-2)/2 3y/2= -4+1
x=1+6/2 3y/2×2/3= -3×2/3
x=7/2 y= -2
S.s{ 7/3,-2}
2). -4x-6y+6y=7-6y. 4x+y= -2
-4x/-4=7-6y/-4. 4(-7-6y/4)+y= -2
x= -7-6y/4. -7-6y+y = -2
x= -7-6/4 -5y/5= 5/5
x=-13/4 y= 1
S.s { -13/4, 1 }
