$143
add the two discounts of 25 and 10 percent. then your item will be 65% of the price now.
Answer:
x = 1
Step-by-step explanation:
Given in the question the equation
y = -x² + 2x - 1
To find the x-intercept, substitute in 0 for y
0 = -x² + 2x - 1
To find value of x use quadratic equation
x = -b ± √b²-4ac / 2a
here a = -1
b = 2
c = -1
x1 = -2 + √2²-4(-1)(-1) / 2(-1)
= -2 + 0 / -2
= -2 / -2
= 1
x2 = -2 - √2²-4(-1)(-1) / 2(-1)
= -2 - 0 / -2
= -2 / -2
= 1
It took her 4 hours.
Since she travels 50 miles in just one hour, in four hours she could drive 200 miles. :)
Answer:
20/9
Step-by-step explanation:
2/9/10 = (2/1)(10/9)
(2)(10/9) = 20/9