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
Verdich [7]
3 years ago
8

John went on a bike ride to the store 4 miles away. If it took John 3/10 of an hour to get there and 1/2 of an hour to get back,

what was his average rate of speed (miles per hour) for the entire trip?
Mathematics
1 answer:
stiv31 [10]3 years ago
8 0

The round trip was 8 miles ( 4 + 4 = 8)

The total time for the trip is 3/10 + 1/2

Rewrite 1/2 as 5/10

Now add 3/10 + 5/10 = 8/10 = 4/5 hour for the 8 mile trip.

Now to find miles per hour, divide total miles by total time:

8 miles / 4/5 hour

When you divide by a fraction flip the fraction over and multiply:

8 x 5/4 = 40/4 = 10

The average rate was 10 miles per hour.

You might be interested in
A place from this table is chosen at random. Let event A = The place is a city.
Crank

Answer:

Final answer is P(A^c)=\frac{3}{7}

Step-by-step explanation:

We have been given a table containing a list of few places that are either city or in North America.

Total number of places in that list = 7

That means sample space has 7 possible events.

Given that a place from this table is chosen at random. Let event A = The place is a city.

Now we need to find about what is P(A^c).

That means find find the probability that chosen place is not a city.

there are 3 places in the list which are not city.

Hence favorable number of events = 3

Then required probability is given by favorable/total events.

P(A^c)=\frac{3}{7}

6 0
3 years ago
Carla's retirement party will cost $15 if she invites 3 guests. If there are 4 guests, how much will Carla's retirement party co
LekaFEV [45]

Answer:

$20

Step-by-step explanation:

15/3=5 which means that for every guest attending Carla's retirement party it must cost her $5 each.

Therefore if 4 guests come to the party it must mean 4(5) which is 20.

Hence $20

7 0
3 years ago
Read 2 more answers
Divide. −4 2/5÷(−5)<br> −22/25<br><br> −8/25<br><br> 8/25<br><br> 22/25
Alika [10]

−4 2/5÷(−5)

−22/25

The answer is 8/25

5 0
3 years ago
Read 2 more answers
If the ratio of boys to girls in a classroom is 2:3 and there are 10 boys, how many girls are there? Please answer thank you!
MakcuM [25]
Answer:
15 girls

Explanation:
We know that the ratio of boys to girls in the classroom is 2:3, meaning that for every 2 boys there are 3 girls.

Now, we can set up a proportion to solve this problem.

Please see the picture attached.

I hope this helps!

7 0
3 years ago
Read 2 more answers
Please help! which of the following is closest to the mean of the data set shown?
Allisa [31]

Answer:

3 is the answer

Step-by-step explanation:

add all 6 numbers up then divide by 6

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me understand this: Abdul used a probability simulator to roll a 6-sided number cube and flip a coin 100 times. The
    14·2 answers
  • Best/correct answer gets brainliest!!
    13·1 answer
  • What two numbers add together to get -13 and multiply to get -30? They have to be the same numbers.
    13·2 answers
  • The equation for a projectile's height versus time is h(t)=-16t^2+Vt+h. A tennis ball machine serves a ball vertically into the
    7·1 answer
  • )::)):):):):):):)):):):):):)):):):):):):)):)JUST HELP
    12·1 answer
  • What is -13 7/12 + 2 1/2
    7·1 answer
  • HELP please, will give brainliest​
    15·2 answers
  • PLEASE HELP 50 PTS!! In algebra, we use systems to organize information about a situation in an efficient way.
    5·1 answer
  • (HOW TO TYPE IN) what is six percent of 7.95<br>​
    9·1 answer
  • A food truck sells latin american street tacos. The graph shows the number of corn tortillas needed for different numbers of the
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!