Answer:
After 4 miles driven by cab the amount would be same in both cities.
Step-by-step explanation:
Let the number of miles be 'x'.
Given:
In NYC
Flat fee of cab = $4
Per mile charge = $1.25
Total cab charges is equal to sum of Flat fee of cab and per mile charge multiplied by number of miles.
Framing in equation form we get;
Total cab charges in NYC =
In Chicago
Flat fee of cab = $6
Per mile charge = $0.75
Total cab charges is equal to sum of Flat fee of cab and per mile charge multiplied by number of miles.
Framing in equation form we get;
Total cab charges in Chicago =
Now we need to find number of miles driven so that the amount could same in both cities.
Total cab charges in NYC = Total cab charges in Chicago
Combining like terms we get;
using Division Property we will divide both side by 0.5 we get;
Hence After 4 miles driven by cab the amount would be same in both cities.
Answer:
The probability of select randomly a red or a blue marble is
Step-by-step explanation:
The probability of an event is the ratio of the number of ways it can happen, to the total number of possible cases.
Select randomly a red or a blue marble are mutually exclusive events because they cannot occur at the same time. When two events, A and B, are mutually exclusive, the probability that A or B will occur is the sum of the probability of each event.
We know from the information given that
- There are 46 red marbles, 59 white marbles and 49 blue marbles
We can use this information to calculate the probability of select randomly a red marble and also the probability to select randomly a blue marble
Now we can calculate the probability that we select a red or a blue marble
Answer:
10 or 40
Step-by-step explanation:
We have the following equation
-4d²+200d-100= 1500
We want all the non zero on one side and so we subtract 1500
-4d²+200d-1600=0
Solve for d
4( -d²+50d-400)=0
factor (I can explain this part in depth if needed)
4(d-40)(d-10)=0
d=40
d=10
This means that the price either needs to be 40 or 10 dollars
35=45-n
we do not want negative n so we add n to both sides
n+35=45
now subtract 35 from both sides
n=10
Answer:
25 days old
Step-by-step explanation:
7 days = 1 week
3 x 7 = 21
21 + 4 = 25
25 days old