Answer:You would have to use over 200 minutes in a month in order for the second plan to be preferable.
Step-by-step explanation:
Let x represent the number of minutes that you use in a month.
The first plan charges a rate of 25 cents per minute. It means that the cost of using x minutes in a month with this plan is 0.25x.
The second plan charges a monthly fee of $29.95 in addition to 10 cents per minute. It means that the cost of using x minutes in a month with this plan is
29.95 + 0.1x
For the second plan to be preferable, its cost would be lesser than the first plan. Therefore,
29.95 + 0.1x < 0.25x
29.95 < 0.25x - 0.1x
29.95 < 0.15x
0.15x > 29.95
x > 29.95/0.15
x > 200
Answer:
$11,008.56.
Step-by-step explanation:
6% less each year means that the car is worth (100 - 6) = 94% or 0.94 of the previous year,
The function is:
f(t) = 15000(0.94)^t where t = the times in years.
After 5 years the value =
15000(0.94)^5
= $11008.56
Answer:
5
Step-by-step explanation:
1 crystal can raise 12 zombies
x crystals can raise 60 zombies
This is a problem involving <em>ratio-and-proportion</em>.\
1/x = 12/60
Reduce the fraction to lowest terms 1/x = ⅕
Multiply each side by x 1 = x/5
Multiply each side by 5 x = 5
Lilliana needs five dark power crystals to raise 60 zombies.