Answer:
120
Step-by-step explanation:
We are given that the function for the number of students enrolled in a new course is .
It is asked to find the average increase in the number of students enrolled per hour between 2 to 4 hours.
We know that the average rate of change is given by,
,
where f(x)-f(a) is the change in the function as the input value (x-a) changes.
Now, the number of students enrolled at 4 = f(4) = = 255 and the number of students enrolled at 2 = f(2) = = 15
So, the average increase = = = 120.
Hence, the average increase in the number of students enrolled is 120.
Answer:
$27.14
Step-by-step explanation:
Price of 1 DVD: $9.10
Price of 4 DVDs: 4 * $9.10 = $36.40
Discount: 25%
Now we find 25% of $36.40.
25% of $36.40 =
= 0.25 * $36.40
= $9.10
The 25% discount amounts to $9.10. We now subtract $9.10 from $36.40 to find the discounted price.
$36.40 - $9.10 = $27.30
Now we need to apply the 6.75% tax to $27.30.
6.75% of $27.30 =
= 0.0675 * $27.30
= $1.84
The sales tax is $1.84.
Now we add the sales tax amount to the total discounted price.
$27.30 + $1.84 = $29.14
Answer: $27.14
Answer: 1. Mary Ann has saved $2 more than Carlos
Step-by-step explanation:
He has $26 after 3 hours
she has...
y=6(3)+10
y=18+10
y=28
so
28-26=2
A) x= 5/7
b) x= 5/2
c) x= -1
Answer:
30.1 litres
pls give me brainliest :)
Step-by-step explanation:
9.1km : 1 litre
274km: x
274=9.1x
274/9.1=9.1x/9.1
30.1 =x