Answer:
The persons saves 25% by buying one set of six ball instead of two sets of three balls.
Step-by-step explanation:
Cost of 1 set of three balls = 40 cents
Cost of 2 sets of three balls = 40 cents × 2 = 80 cents
Cost of 1 set of six balls = 60 cents
Percent dose he save by buying one set of six ball instead of two sets of three balls :
=
The persons saves 25% by buying one set of six ball instead of two sets of three balls.
Answer:
Yes
Step-by-step explanation:
In the first equation, sub in (-3x/2) for y:
3x+4y=12
3x+4(-3x/2)=12
3x-(12x/2)=12
3x-6x=12
-3x=12
x=-4
y=-3x/2
y=-3(-4)/2
y=12/2
y=6
Since x=-4 and y=6, (-4,6) is a solution.
Answer:
DC=6
Step-by-step explanation:
all is shown and pictured