Okay so because it's 10% off you're going to take the original price ($25) and move the decimal over once. So, $2.50. Now back to the original price!
$25.00 - $2.50 = $23.50 for the sweatshirt. I don't think I explained that very well, but that'd be how you found your answer?
Answer:
y = 3x -1
Step-by-step explanation:
When the given points are dilated by a factor of 1/5 about the origin, each of the coordinate values is multiplied by 1/5. The points after dilation are ...
... (2/5, 1/5), (-1/5, -8/5)
The line through these points can be found starting with a 2-point form of the equation for the line.
... y -y1 = (y2 -y1)/(x2 -x1)·(x -x1)
Filling in the point values gives ...
... y -1/5 = (-8/5 -1/5)/(-1/5 -2/5)(x -2/5)
... y = (-9/5)/(-3/5)(x -2/5) +1/5 . . . . simplify parentheses, add 1/5
... y = 3x -1 . . . . . simplify
_____
The graph shows the original points and the line through them in red, and the dilated points and line in green.
Answer:
The answer is 12
Step-by-step explanation:
we multiply it by 2 6 and another 6 is 12 so answer is 12
Answer:
80
Step-by-step explanation:
you can take the ratio 2:3:4 as
2x + 3x + 4x = 180
9x = 180
x= 20
4(20) = 80
Answer:
1. x = -15
2. x = 0.25 or x = 1/4
Step-by-step explanation:
1.
8 + 9.8x + 9 = 3.8x - 16 + 3.8x
Simplify both sides
17 + 9.8x = 7.6x - 16
-17 -17
9.8x = 7.6x - 33
-7.6x -7.6x
2.2x = -33
Divide by 2.2
x = -15
2.
-2x - 10 = -14x - 7
+7 +7
-2x - 3 = -14x
+2x +2x
-3 = -12x
Divide by -12
0.25 = x
x = 0.25 or x = 1/4