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
motikmotik
3 years ago
11

The length of a rectangle is 2 km less than 3 times the width. If the perimeter is 68 km,What is the length of the rectangle

Mathematics
1 answer:
11111nata11111 [884]3 years ago
6 0

Answer:

The length of the rectangle is 25 km

Step-by-step explanation:

Let

x ----> the length of rectangle

y ----> the width of rectangle

we know that

The perimeter of rectangle is

P=2(x+y)

we have

P=68\ km

so

68=2(x+y)

simplify

34=(x+y)---- > equation A

x=3y-2 ---> equation B

substitute equation B in equation A and solve for y

34=(3y-2)+y

34=4y-2

4y=34+2

4y=36

y=9\ km

Find the value of x

x=3(9)-2=25\ km

therefore

The length of the rectangle is 25 km

You might be interested in
This graph shows the distance that a robot walk. What’s is the robot’s speed ?
Charra [1.4K]

B. 10 ft per minute

because the line is steadily increasing at a constant rate yeah, it's 10 feet per minute

7 0
3 years ago
Read 2 more answers
there are 49 dogs signed up for the dog show. there are 36 more small dogs than large dogs. how many small dogs are signed up fo
pogonyaev
Okay, so total dogs are 49.
So we know if x=large dogs and y=small dogs, then x+y=49.
Next we are told that there are 36 MORE small dogs than large dogs. We can take that more meaning addition, and x being our value for large dogs. So y=x+36.
After that we now know what value we can plug in for y. So x+x+36=49.
We can then simplify it to 2x+36=49.
Subtracting the 36 from both sides, leaves you with 2x=13.
Followed by dividing both sides by 2, gives you x=6.5. Or 6.5 large dogs.
Now we can plug this into our formula for the small dogs (y=x+36) to give us y=6.5+36, which simplifies to y=42.5. Or 42.5 small dogs. Which is our answer.
We can double check it by adding the small and large dogs together, 6.5+42.5, which gives us 49, our total entries.
4 0
3 years ago
Read 2 more answers
Ur getting paid $360 per day.....get sick and leave after 1/5 of the day
zheka24 [161]

Answer:

You would earn $72 that day.

Step-by-step explanation:

$360 / 5 = $72

$72 * 5 = $360

Hope this helps!

8 0
3 years ago
Read 2 more answers
Subtract -7x^2+4x+2−7x 2+4x+2 from x^2-3x 2 −3.
expeople1 [14]

Answer:

The answer is 4

Step-by-step explanation:

4 0
3 years ago
Which shows the pre-image of triangle X'Y'Z' before the figure was rotated 90° about the origin?
Oksanka [162]

Answer:

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

The above is the second option in your question.

Step-by-step explanation:

a triangle has points X' (-2, 2), Y' (0, 6), Z' (1, 1)

To rotate the above triangle -90° about the origin you invert the x & y values and change the sign on the new y value.

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the approximate side length of a square game board with an area of 186in2
    11·2 answers
  • Pictures, x
    9·1 answer
  • Given that<br> (x-p)(2x²+9x+10)=(x²-4)(2x+q)<br> for all values of x, find the constants p and q.
    11·2 answers
  • On the coordinate grid, the graph of y = -x - 1 is shown
    5·1 answer
  • A runner runs at 7.6 mph for 3 1/2 hours how many miles do they do?
    11·1 answer
  • Evaluate the following expression.<br> (5x)"<br> 1
    14·1 answer
  • 35. In January 1990 the world's population
    12·1 answer
  • FOR 15 POINTS ANSWER THESE 3 QUESTIONS AND WILL MARK BRAINLIEST. 1. The courthouse is on the exterior corner of the intersection
    6·1 answer
  • Convert 10010011001 into a number with commas.
    6·2 answers
  • What is the range of function g if g(x) =-2f(x-3)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!