Nick bought a pair of glasses for 200. he later saw the same glasses advertised for 20% less than what he originally paid. what
2 answers:
Answer:
$160 was the price at which glasses were advertised.
Step-by-step explanation:
Nick bought a pair of glasses for 200.
He later saw the same glasses advertised for 20% less than what he originally paid.
We have to find the price of the glasses as per advertisement.
Price of the sunglasses after discount of 20% = Price Nick paid - 20% of price Nick paid
= 200 - 20% of 200
= 200 - 200×
= 200 - 200×0.2
= 200 - 40
= 160
Therefore, the price of the glasses was $160 in the advertisement.
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Answer:
y = - 3x + 7
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (2, 1) and (x₂, y₂ ) = (5, - 8)
m = =
= - 3 , thus
y = - 3x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (2, 1) , then
1 = - 6 + c ⇒ c = 1 + 6 = 7
y = - 3x + 7 ← equation of line