Answer:
original price =148.57
Step-by-step explanation:
The original price * discount is the markdown
original price - discount = sale price
original price - original price * discount = sale price
Factor out the original price
original price (1-discount) = sale price
We know the discount is 65% and the sale price is 52
original price (1-.65) = 52
original price (.35) = 52
Divide by .35 on each side
original price (.35)/.35 = 52/.35
original price =148.57
Y = mx + b
The change in y over teh change in x = -12/4 = -3
y= -3x + b
b = y-int. (0)
Answer : y = -3x
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If 10 is decreased to 6 it would be 60% a
Answer: y = 5/2 or 2.5
Steps:
6(2y - 1) - 2(2y) = 14
12y - 6 - 4y = 14
8y - 6 = 14
8y = 20
y = 20/8
y = 5/2 or 2.5