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
Mashutka [201]
3 years ago
12

A car run 3/4 mile per minute another car can run 4/5 mile per minute.what is the difference in speed in miles per hour?

Mathematics
1 answer:
dybincka [34]3 years ago
3 0

Answer:

3 miles per hour

Step-by-step explanation:

We need to subtract the two numbers to find the difference in speeds

4/5 - 3/4

We need to get a common denominator of 20

4/5 *4/4 - 3/4 *5/5

16/20 - 15/20

1/20  

The car going 4/5 miles per minute is going 1/20 miles per minute faster than the car going 3/4 miles per minute.

The question asks for miles per hour, not miles per minute.  We know  that there are 60 minutes per hour.

1/20 miles per minute * 60 minutes / hour

60/20 miles/hour

3 miles/ hour

The car going 4/5 miles per minute is going 3 miles per hour faster than the car going 3/4 miles per minute.

You might be interested in
What is 2+2÷4+34-2÷20= ____
Vadim26 [7]
Follow pemdas
2+(1/2) +34- (1/10)
2.5 + 34 - .1
36.5-.1
36.4
3 0
3 years ago
Read 2 more answers
A school has a square courtyard and wants to create diagonal walkways. The length of each side
Nastasia [14]

Answer:

Approximately 51 Yards

Step-by-step explanation:

You can solve this by cutting the square in half to make a right triangle. Than, you can use the Pythagorean theorem to solve for the hypotenuse.

a^2+b^2=c^2

36^2+36^2=c^2

1296+1296=c^2

2592=c^2

50.9116

Round to the nearest whole number since the question says approximately: 51

3 0
3 years ago
Read 2 more answers
Find the solution to the system of equations.<br> 1 + 3y = 4<br> 2r + 5y = 12
ivann1987 [24]

Answer: {x,y}={-1,2}

step-by-step explanation:

// Solve equation [2] for the variable  x

 [2]    2x = 5y - 12

 [2]    x = 5y/2 - 6

// Plug this in for variable  x  in equation [1]

  [1]    2•(5y/2-6) + 3y = 4

  [1]    8y = 16

// Solve equation [1] for the variable  y

  [1]    8y = 16

  [1]    y = 2

// By now we know this much :

   x = 5y/2-6

   y = 2

// Use the  y  value to solve for  x

   x = (5/2)(2)-6 = -1

Solution :

{x,y} = {-1,2}

5 0
2 years ago
Shane has nine notes in his wallet, three are $50 and the rest are $20 notes. Write the ratio of $50 notes to $20 dollar notes.
insens350 [35]

Answer:

50x20=1000

Step-by-step explanation:

6 0
2 years ago
Anna picked 6 apples. Sabrina picked 7 times as many apples. How many apples did Sabrina pick?
koban [17]

Anna picked 6 apples

Sabrina picked 7 <em>times</em> as many apples.

Multiply the two numbers together

6 x 7 = 42

Sabrina picked 42 apples

hope this helps

~<em>Rise Above the Ordinary</em>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to 19/39?
    8·2 answers
  • Will mark brainliest!!!!!<br> complete this statement<br> 15x^4a^2+20x^2a^3=5x^2a^2 ( )
    12·1 answer
  • Please help me on this. 18 pts.
    13·1 answer
  • What is the range of the function shown<br> on the graph above?
    11·1 answer
  • 9 + (3x + 4) = 9 + (4 + 3x) shows and example of what property?
    15·2 answers
  • A crate of bananas has a mass of 674.8 dekagrams. What is the mass of the crate of bananas in centigrams? Use the metric table t
    6·2 answers
  • PLEASE HELP ME WITH THIS!!!!!!!!!!!
    14·1 answer
  • A weather balloon is descending from the atmosphere. Its altitude changes by
    15·1 answer
  • Divide.<br><br> (5/6)÷(−2/3)
    5·1 answer
  • What is 180.2 rounded to the nearest hundred
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!