Answer:
The mileage is 2,300 miles
Step-by-step explanation:
Let x be the number of miles driven.
<u>Primo:</u>
$47 per day
$0.30 per mile $0.30x per x miles.
Total cost
<u>Ultimo:</u>
$26 per day
$0.95 per mile $0.95x per x miles.
Total cost
If Ultimo charge is three times the Primo charge, then
Solve this equation:
Answer:
Helene is right
Step-by-step explanation:
Mathematically, the expected values is defined as the sum of all the possible outcomes that an event can have times the probality of the respective outcome:
x = ∑ p *i,
where x is the expected value, i represents every outcome that can occur, and p is the probability of said outcome.
Now, for the case of a dice, the expected value would be:
x = 1 * + 2 *
+ 3 *
+ 4 *
+ 5*
+ 6 *
,
as every outcome has the same chance of happenning. Solving we get that:
x= *(1 +2 +3 +4+5+6) =
* 21 = 3.5
Helene is right.