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
Genrish500 [490]
3 years ago
5

In the first 120 miles over 240 mile journey a truck driver maintained an average speed of 50 mph what was his average featuring

the next 120 miles if the average speed of the entire trip with 60 mph
Mathematics
2 answers:
Keith_Richards [23]3 years ago
3 0
The correct answer is 70 MPH because when 50 and 70 are added together and divided by 2, you get 60.
julsineya [31]3 years ago
3 0
The average speed over the entire trip was 60 mph, which must equal the distance traveled (240 miles) times the elapsed time.  Dividing  60 mph into 240 miles gives us the elapsed time:  (240 miles) / (60 mph) = 4 hours total.

Next:  determine the length of time required to drive the first 120 miles at 50 mph.  It is (120 miles) / (50 mph), or 2.4 hours.

Next, find the length of time required to drive the second 120 miles.  It is 4 hours less 2.4 hours, or 1.6 hours.

Lastly, find the average speed over which the second 120 miles were covered in 1.6 hours:

average speed (2nd 120 miles) = (120 miles) / (1.6 hours) = 75 mph.
You might be interested in
-1/9 + (-5/9) =<br><br> Write the answer in simplest form
Vlada [557]
I got the answer - 2/3

6 0
3 years ago
Read 2 more answers
Can someone please help me with this​
vovangra [49]

Answer:

y = 5

z = 55

Step-by-step explanation:

90 - 35 = 55

z = 55

7y = 35

\frac{7y}{7} = \frac{35}{7}

y= 5

3 0
3 years ago
If a dies is rolled one time, find these probabilities. getting a number less than or equal to 4
trapecia [35]
Hi there!

So let's see, we have a die and need to know the probability of rolling a number less than or equal to 4. Let's list the numbers that are less than or equal to 4: 1, 2, 3, 4. Now, since we know that there are 6 numbers on a die and 4 of them are less than or equal to 4, we can set up a fraction to find the percentage. The fraction would be 4/6 because 4 out of the 6 numbers on the die are less than or equal to 6. We can simplify 4/6 to 2/3 as well. To find the percentage, all we need to do is divide the numerator by the denominator. This leaves us with approximately 66.66%.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
5 0
3 years ago
Rob and john share money in a ratio of 9:4. How much of the £39000 does john get ?
murzikaleks [220]
\bf \cfrac{Rob}{John}\qquad 9:4\qquad \cfrac{9}{4}\qquad \cfrac{9\cdot \frac{39000}{9+4}}{4\cdot \frac{39000}{9+4}}\implies \cfrac{9\cdot 3000}{4\cdot 3000}
3 0
3 years ago
The sum of a number times 9 and 30 is at least -28
Mars2501 [29]

Answer:

9n + 30 ≥ -28

Step-by-step explanation:

Let the number be n.  Then, symbolically, this statement is:

9n + 30 ≥ -28

8 0
3 years ago
Other questions:
  • Tina wants to save money for school. Tina invests $1,100 in an account that pays an interest rate of 7.25%. How many years will
    8·1 answer
  • If the diameter of a circle changes from 18 cm to 6 cm, how will the circumference change?
    6·1 answer
  • The ymca lap pool is a right rectangular prism 36.8\, \text{m}36.8m36, point, 8, space, m long by 20 \,\text{m}20m20, space, m w
    11·2 answers
  • If there are 3 boys for every 4 girls in the choir, how many boys are there if there are 42 students?
    7·1 answer
  • Chissy had 4 gallons of gas in her tank when she arrived at the gas station. She pumped gas into her car at a rate of 3/10 gallo
    12·1 answer
  • Solve for x in the equation x^2 + 10x + 12 = 36. x = –12 or x = 2 x = –11 or x = 1 x = –2 or x = 12 x = –1 or x = 11
    8·2 answers
  • A box of nails costs $2.25. A box of screws costs 1.2 times as much as the box of nails.
    6·2 answers
  • A marathon is 131\5 miles long. If 4 people divide the distance equally, how many miles does each person need to run?
    6·1 answer
  • Delta makes 12-volt car batteries. These batteries are known to be normally
    7·1 answer
  • PLS HELP WILL GIVE BRAINLIEST
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!