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
ELEN [110]
3 years ago
15

Malcolm and Ravi raced each other.

Mathematics
1 answer:
il63 [147K]3 years ago
7 0

The problem can be represented by two equations:

 

The average of the two speeds are 260 km/hr.  ->   1/2(X + Y) = 260

Twice Malcom's speeds is 80 more than Ravi's speed -> 2X - Y = 80

where X = Malcom's maximum speed, Y = Ravi's maximum speed.

 

This is two equations in two unknowns:

 

1)X + Y = 520

2)2X - Y = 80

 

add equations 1 and 2

 

3X = 600

X = 200,

 

Plug X back into equation 1.

 

200 + Y = 520 -> Y = 320.

 

Malcom's maximum speed is 200 km/hr.

Ravi's maximum speed is 320 km/hr.

You might be interested in
In which container is the probability of randomly selecting a green ball on one draw 4/7?
Snowcat [4.5K]

Answer:

B

Step-by-step explanation:

B

3 0
2 years ago
Read 2 more answers
Please need help on this not too sure on this
kifflom [539]



option 3

they are corresponding angles and are congruent

8 0
3 years ago
A right Triangle XYZ has Vertices X(−2, −1) and Y(1, 1) and a right angle at Vertex Z.
Bingel [31]

Answer:

x(1,4)  Y(2,3)  and Z(5,y)

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
If 2/3 of a certain number is subtracted from twice the number, the result is 20. Find the number.​
sleet_krkn [62]

Let x be the number.

Set up an equation:

2x - 2/3x = 20

Simplify:

1 1/3x = 20

Divide both sides by 1 1/3

X = 15

The number is 15

3 0
3 years ago
Read 2 more answers
4/5 minus 1/3 plz i need help
IRISSAK [1]

Answer:

7/15

Step-by-step explanation:

Step 1

We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 4 by 3, and get 12.

Then we multiply 1 by 5, and get 5.

Next we give both terms new denominators -- 5 × 3 = 15.

So now our fractions look like this:

12

15

−  

5

15

Step 2

Since our denominators match, we can subtract the numerators.

12 − 5 = 7

So the answer is:

7

15

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

Nope! So now we try the next greatest prime number, 3...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

No good. 11 is larger than 7. So we're done reducing.

6 0
2 years ago
Other questions:
  • There are 18 oranges in box A and 36 in box B, what is the ratio of box A to box B
    12·1 answer
  • In a particular game, a spinner with four equally-sized sectors labeled 1, 4, 6, and 8 is spun twice. One turn is considered 2 s
    14·2 answers
  • What is the answer if you cut a clock in half and add up to get the same answere on both sides
    8·1 answer
  • A cube has a side length of 8 inches.
    9·1 answer
  • Identify the initial amount a and the growth factor b in the exponential function.
    13·1 answer
  • 5. Use the equation shown to answer a-b.
    10·1 answer
  • What is the equation of the line that passes through (-1,-4) and (-2,-1)
    15·1 answer
  • Prognogg
    11·1 answer
  • Please help me with this question :)
    15·1 answer
  • H = 3 + 31t - 161²<br> Find all values of t for which the ball's height is 17 feet .​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!