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
Georgia [21]
3 years ago
7

John traveled 80% of the way from yellow-town to green-fields by train at an average speed of 80 miles per hour. the rest of the

way john traveled by car at an average speed of v miles per hour. if the average speed for the entire trip was 60 miles per hour, what is v in miles per hour?
Mathematics
1 answer:
zaharov [31]3 years ago
3 0
Pick 100 km for D... 
<span>This would yield T=100 minutes </span>

<span>Using the question stem we calculate 80 km were traveled in 1h (or 60 minutes).... </span>

<span>This leaves us with 40 minutes (2/3 of an hour) to travel 20km..... </span>

<span>R*T=D </span>

<span>R*2/3=20 </span>

<span>R=30 </span>

<span>Answer A....</span>
You might be interested in
-1 2/3 + 3 1/2 as a mixed number
balu736 [363]
1 83/100 because 3-1=2
8 0
3 years ago
Read 2 more answers
Which ratio froms a proportional with 16/20? A 4/10 B 32/50 C 8/12 D 4/5​
kiruha [24]
D . 4/5 16/4 = 4 | 20/4=5.
6 0
3 years ago
Read 2 more answers
Which property states that for all real numbers, x, y and z, if x = y and y = z, then x = z ?
Leto [7]

Answer:

The transitive property of equality

Step-by-step explanation:

The transitive property states if a=b and b=c then a=c. If two things are equal and one of those two things is equal to another thing, then they all must be equal.


4 0
3 years ago
Solve y+x=-3 by graphing
Gnoma [55]
Move x to the right side, so we could get y=-3-x.
If you didn't have a calculator, go to https://www.desmos.com/calculator and graph it. The rest is your work.
7 0
3 years ago
Read 2 more answers
A circle is cut from a square piece of cloth, as shown:
leonid [27]

a = \pi \:  {r}^{2}
r =  \frac{36}{2}
Using pi at 3.14 the answer is 1,017.36
8 0
3 years ago
Read 2 more answers
Other questions:
  • Here’s what they are asking
    8·1 answer
  • What is the range of h(x)?
    5·1 answer
  • How much interest is earned on $8,000 invested at an annual rate of 12% for 1 year?
    13·1 answer
  • What is timetablerockstar
    13·2 answers
  • Writed each decimal that is -0.85
    7·1 answer
  • Sales records at an automobile dealership show that they sold 40 red cars one month. Of those cars, 25 were new cars and 15 were
    7·1 answer
  • What is sin 62°?<br> 62<br> 17<br> 8<br> 28°<br> 90°<br> 15<br> O<br> A.<br> B.<br> O O<br> c.<br> O
    11·2 answers
  • A sculpture is in the shape of a square pyramid. The sculpture has a height of 36 feet and a volume of 19,200 cubic feet. Find t
    10·2 answers
  • You buy rice at $0.71 a pound a batch requires 4 pounds or rice how much is one batch​
    15·2 answers
  • What is the constat proportionlity in the equation 3y=2x
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!