Answer:
The correct option is:
100 + 0.8(x - 100) = 250
Step-by-step explanation:
We are given that:
We know that a department store gives 20 % off the portion of the bill that is over 100 dollars.
Total bill is 250 and x is the amount of money she would have spent without the promotion.
The cost to which the discount applies is 0.8 ( x - 100 ).
<em>Finally the equation we get is 100 + 0.8 (x - 100) = 250.</em>
575* 0.05 = 28.75
28.75* 2.5(yrs) = 71.875
575+ 71.875 = 646.875
therefore, $646.87
The correct answer is A!
c(x) = 1.50 + 1.25x
Answer:
12π
Step-by-step explanation:
The circumference is the distance you need to walk to do 1 full rotation of a shape. The formula to calculate the circumference of a circle will be
circumference =2πr
where π is a constant that equal to 3.14 or 22/7 and r is the radius of the circle (radius = 6 feet).
The circumference of this circle will be:
circumference =2πr
circumference =2π(6)
circumference =12π
The answer is A, -1/2, hope this helps
