answer.
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
Rudik [331]
2 years ago
8

Ava wants to figure out the average speed she is driving. She starts checking her car’s clock at mile marker 0. It takes her 4 m

inutes to reach mile marker 3. When she reaches mile marker 6, she notes that 8 minutes total have passed since mile marker 0.
What is Ava’s speed in miles per hour?
Mathematics
2 answers:
Novosadov [1.4K]2 years ago
6 0

Answer:

45 mph

Step-by-step explanation:

Find the unit rate (i. e., the speed):

6 mi        60 min

--------- * ------------- = (3/4)(60) mph = 45 mph

8 min       1 hr

iren [92.7K]2 years ago
6 0

Answer:

0.75 miles per minute

Step-by-step explanation:

You might be interested in
A test has a mean of 80 with a standard deviation of 4. Which of the following scores is within one standard deviation of the me
Bogdan [553]

Answer:

B

Step-by-step explanation:

Mathematically, we shall be using the z-score here

Z-score = (x-mean)/SD

From the question, mean = 80 and SD = 4

So we want to get the option in the question that has a z-score of 1 or below

Let’s look at 75

80-75 = 5 ( this is clearly above 1 standard deviation of 4)

For 77;

80 -77 = 3

This is less than the standard deviation of 4, meaning it is within 1 standard deviation of the mean

7 0
2 years ago
jack puts 1/3 pound of birdseed into his feeder every time he fills it. how many can jack fill his bird feeder with 4 pounds of
Flura [38]

Answer: Jack can fill his feeder 12 times with 4 pounds of birdseed.

Step-by-step explanation:

You need to analize the information given in the exercise, You know that every time Jack fills the feeder, he put \frac{1}{3} pounds into it.

Then, in order to solve this exercise, let "x" represents the number of times that Jack can fill his  feeder with 4 pounds of birdseed.

Keeping on mind the data provided in the exercise, you can set up de following proportion:

\frac{1}{\frac{1}{3}} = \frac{x}{4}

Finally, you must solve for "x" in order to find its value.

You get that this  is:

3= \frac{x}{4}\\\\(3)(4)=x\\\\x=12

Therefore, you can conclude that Jack can fill his feeder 12 times with 4 pounds of birdseed.

4 0
2 years ago
Make b the subject of this formula. a=9b
USPshnik [31]

Answer:

a = 9b

divide each side by 9

\frac{a}{9} = b

6 0
2 years ago
Sophie has $4.20 worth of dimes and quarters. She has twice as many quarters as
ikadub [295]

Answer:

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
According to the Rational Root Theorem, Negative two-fifths is a potential rational root of which function?
Artemon [7]

Answer:

f(x) = 4x4 – 7x2 + x + 25 f(x) = 9x4

Step-by-step explanation:

Because it has to be this one

3 0
2 years ago
Read 2 more answers
Other questions:
  • A credit card issuer charges an APR of 13.99%, and its billing cycle is 30 days long. What is its periodic interest rate?
    12·2 answers
  • A bank received an initial deposit of $12,000, kept a percentage of this money in reserve based on a reserve rate of 6%, and loa
    12·1 answer
  • George is building a fence around a rectangular dog run. He is using his house as one side of the run. The area of the dog run w
    13·2 answers
  • When solving negative one over five -1/5 (x − 25) = 7, what is the correct sequence of operations
    10·1 answer
  • What's 624 divided by 27 showing the work?
    12·1 answer
  • Jorge finds that 56% of his 75 classmates like salsa music and 80% of his 60 relatives like salsa music. How many more of Jorge’
    7·1 answer
  • A store sells both cold and hot beverages. Cold beverages, c, cost $1.50, while hot beverages, h, cost $2.00. On Saturday, drink
    14·2 answers
  • Help 20 points ,
    7·2 answers
  • Subtract (5x + 3) from (9x – 7).
    13·2 answers
  • Adam traveled out of town for a regional basketball tournament. He drove at a steady speed of 72.4 miles per hour for 4.62 hours
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!