1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Doss [256]
3 years ago
13

The cost of 12 gallons of gas is 28.68 how many miles can you expect to drive

Mathematics
1 answer:
Serjik [45]3 years ago
8 0
How many miles to the gallon does the car get ?
You might be interested in
Marley is a waitress. On Thursday, she earned $4.60 per hour plus $50.25 in tips. How many hours did she work that day if she ea
ELEN [110]

Answer:

8 hours

Step-by-step explanation:

1. Subtract value of tips she got that day

87.05 - 50.25 = 36.8

36.8 is the actual payment for her job that day

2. Divide 36.8 with paid/hour (4.6)

36.8 ÷ 4.6 = 8 hours

8 0
3 years ago
What is the perimeter of a rectangle whose length is -3x + 4 and a width of 5x - 2?
denpristay [2]

Answer:

Step-by-step explanation:

Perimeter = 2*(length + width)

=2*(-3x +4 + 5x - 2)

=2*(2x + 2)

=2*2x + 2*2

=4x + 4

3 0
3 years ago
Read 2 more answers
To estimate the number of lizards in a certain region, Sean traps 36 lizards and marks them. He releases these lizards and then
Verdich [7]

Answer:

The answer is C. 450

Step-by-step explanation:

12345678910

Next Question

Correct

The best estimate for the lizard population is 450.

marked lizards counted

total lizards counted

=  

total marked lizards

estimated lizard population

→  

16

200

=  

36

p

→ p = 450

3 0
3 years ago
Question 2 (5 points)<br> What's the explicit rule for the sequence 9, 14, 19, 24, ...?
brilliants [131]

Answer:

adding by 5

Step-by-step explanation:

,...............................

6 0
2 years ago
A report indicated that 37% of adults had received a bogus email intended to steal personal information. Suppose a random sample
fiasKO [112]

Answer:

5.05% probability that no more than 34% had received such an email.

Step-by-step explanation:

We use the binomial approximation to the normal to solve this problem.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 700, p = 0.37

\mu = E(X) = np = 700*0.37 = 259

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{700*0.37*0.63} = 12.77

In a random sample of 700 adults, what is the probability that no more than 34% had received such an email?

34% is 0.34*700 = 238

So this probability is the pvalue of Z when X = 238.

Z = \frac{X - \mu}{\sigma}

Z = \frac{238 - 259}{12.77}

Z = -1.64

Z = -1.64 has a pvalue of 0.0505

5.05% probability that no more than 34% had received such an email.

7 0
3 years ago
Other questions:
  • If the height of the cone, h, is 10 millimeters and the diameter of the base, d, is 30 millimeters, what is the volume of the co
    13·1 answer
  • WILL CROWN BRAINLIEST, GIVE THANKS, AND AMAZING RATING
    11·1 answer
  • 210 sheets of paper is 7cm thick. How thick of a pile would 1260 sheets make?
    15·1 answer
  • Which values of x would make a polynomial equal to zero if the factors of the polynomial were (x-2) and (x-11) ?
    12·1 answer
  • The accompanying data set consists of observations on shower-flow rate (L/min) for a sample of n = 129 houses: 4.6 12.1 7.1 7.0
    7·1 answer
  • A simple random sample of 25 filtered 100 mm cigarettes is​obtained, and the tar content of each cigarette is measured. The samp
    6·1 answer
  • In the right triangle, a = 20, b = 21. Find c<br><br> A) 841<br> B) 22<br> C) 29
    10·1 answer
  • I need help can someone pls help me I need to get this right for my test :((!
    10·1 answer
  • The probability of spinning an even number, flipping tails, then spinning an odd number is
    6·1 answer
  • First combine the like terms in 4F + (-21)+10 F
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!