Amount Watch normally costs is w
Amount of the discount is 0.3w
Percent of decrease of the discount, as a decimal is 0.3
Percent of the normal cost that Chad paid, as a decimal is 0.7
Answer:
x= 5/4 + or - 1/4(square root of 33)
Step-by-step explanation:
Answer:
k12
Tell me the answer
Step-by-step explanation:
9514 1404 393
Answer:
D. 36 units
Step-by-step explanation:
Using the distance formula, we find the length of AB to be ...
d = √((x2 -x1)² +(y2 -y1)²)
d = √((7-(-2))² +(-3-9)²) = √(81 +144) = √225 = 15
The line BC is horizontal, so its length is the difference of the x-coordinates:
BC = 7 -(-2) = 9
The line AC is vertical, so its length is the difference of the y-coordinates:
AC = 9 -(-3) = 12
The sum of the lengths of the sides of the triangle is ...
P = 15 + 9 + 12 = 36
The perimeter is 36 units.
So, you can't solve for two variables.
Solving for y variable:
7 = -y + 3x
y = 3x + 7
Solving for x variable:
7 = -y + 3x
-3x = -y - 7
x = (-y-7)/-3