X^2 - 8x + 13 = 0
subtract 13 from both sides
x^2 - 8x = -13
-8/2 = -4, (-4)^2 = 16, add 16 to both sides
x^2 - 8x + 16 = -13 + 16
factor the left side
(x - 4)^2 = 3
Answer: It takes 1/3 of a minute for each lap
Step-by-step explanation:
Answer:
1/16 my bad
Step by step explanation:
Answer:
For this case we can make the following rule of three:
25% ----------------> 2 $
100% --------------> x
From here, we clear the value of x.
We have then:
Therefore, the value of the Taco that Andrea bought, before the tip, is $ 8.
the price of Andrea's tacos, before tip is $ 8.
