(3,59)(5,87)
slope = (87 - 59) / (5 - 3) = 28/2 = 14 <== ur slope
y = mx + b
slope(m) = 14
use either of ur points...(3,59)...x = 3 and y = 59
now we sub and find b, the y int
59 = 14(3) + b
59 = 42 + b
59 - 42 = b
17 = b <=== ur y int (0,17)
Answer:
Price for one pound = 50 cents
Step-by-step explanation:
Apples are on sale at the market 4 pounds for $2.00.
That is price for one pound = 0.5 $
We have 1 dollar = 100 cents
Price for one pound = 0.5 $ = 0.5 x 100 = 50 cents
Price for one pound = 50 cents
First find the percent of the sales tax added with the tip amount, which is 20%
15% + 5% = 20%
and the percent amount to the original amount, so
20% + 100% = 120%
$18=120% of original amount (12/10 is the same thing as 120%), so
18/12*10=$15= price of meal before tax and tip!
