Answer:
£265
Step-by-step explanation:
Total fraction of money spent=
=
Actual money spent = * £636
= £371
Money he has left = £(636 - 371)
= £265
David drives 168 miles a week for work. He fills his gas tank twice a week. Each fill up is for 12 gallons. Assuming he uses all
2 answers:
Answer:
David's car gives mileage 7 miles per gallon
Step-by-step explanation:
David drives in a week = 168 miles.
He fills his gas tank twice a week, each fill up is for 12 gallons = 12 × 2 = 24 gallon per week
To calculate the mileage of David's car we use the formula
Gas mileage =
=
= 7 miles per gallon
David's car gives mileage 7 miles per gallon
You might be interested in
Answer:
Step-by-step explanation:
We are given that 30% of California residents have adequate earthquake supplies.
a) Ramon variable X denotes the number of the california residents that have adequate earthquake insurance
B) x can take value 1 ,2 ,3 ......
C)The distribution of random variable is geometric distribution with parameter p=0.3
The pmf of geometric distribution is
D)P(X=1) or P(X=2)=P(X=1)+P(X=2)
P(X=1) or P(X=2)=
E)
F)
p is the resident who does not have adequate earthquake supplies.
p = 1-0.3 = 0.7
G)