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
Gnom [1K]
3 years ago
14

A rectangle is four times as long as it is wide. The perimeter is 40 cm. Find the length of each side.

Mathematics
1 answer:
rjkz [21]3 years ago
6 0

Answer:

W=4 l=16

Step-by-step explanation:

Let w = width

Let l = length

Since the length is 4 times the width, l=4w

Perimeter of rectangle = 2l + 2w

= 2(4w)+2w

=10w

The perimeter of the rectangle =40, so

40=10w and w=4

Plug w into the length equation : l=4w=4(4)=16

You might be interested in
Plsss help !!! A - 13/49 = -1
lana [24]
After moving all the terms to the right of the equation and solving you would get A = -36/49. Hope this helps!
5 0
3 years ago
Triangle ABC has sides with lengths of 11, 18, and 8 units. Determine whether this triangle is a right triangle.​
Arturiano [62]

Answer:

Not a right triangle.

Step-by-step explanation:

If this triangle is a right triangle, then the Pythagorean theorem would work on it. According to the Pythagorean theorem, a^2+b^2=c^2, so c would always be greater than a or b. In this scenario, the greatest number here is 18, so c = 18. Since a or b don't matter if given both legs, we have the following equation that may or may not be equal: 8^2+11^2=18^2. We know 8 squared is 64, and 11 squared is 121, and 18 squared is 324. This means that 64+121=324 according to the Pythagorean theorem, and since 64 + 121 = 185, and 185 does not equal 324, the Pythagorean theorem does not work and the triangle is not a right triangle.

3 0
2 years ago
Leonardo wrote an equation that has an infinite number of solutions. One of the terms in Leonardo’s equation is missing, as show
Lady bird [3.3K]

Let us suppose missing term is y

so it becomes - ( x-1) + 5 = 2 ( x+3) - y

let us now try solving it for x ( in terms of y )

-x + 1 + 5 = = 2x + 6 - y

-x + 6 = 2x + 6 -y

6 + y = 2x + 6 +x

y = 3x

y / 3 = x

but x is given to be infinite . let us try placing y= the given options

x= x/3 which is not possible

x= 3x/3 which is giving valid statement

x= 1/3 which is a finite value

x= 5/3 again a finite value

so it is only y= 3x which could be the answer

Answer : option second that is 3x

6 0
3 years ago
Read 2 more answers
The Pythagorean Theorem ONLY works on which triangle?
ioda

Answer:

right angle ( right )

Step-by-step explanation:

Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not. In the triangle above, if a 2 < b 2 + c 2 the angle is acute.

5 0
3 years ago
Read 2 more answers
Trina uses 8.6 pints of blue paint and white paint to paint her bedroom walls.
max2010maxim [7]
<h3>Trina uses 3.44 or \frac{ 17.2}{5} pints of white paint</h3>

<em><u>Solution:</u></em>

Given that,

Trina uses 8.6 pints of blue paint and white paint to paint her bedroom walls

3/5 of the amount is blue paint, and the rest is white paint

From given,

3/5 of 8.6 pints is blue paint

Remaining = 1 - \frac{3}{5}\\\\Remaining = \frac{2}{5}

Thus, 2/5 of 8.6 pints is white paint

<em><u>How many pints of white paint did she use to paint her bedroom walls? </u></em>

White\ paint = \frac{2}{5} \times 8.6\\\\White\ paint = \frac{17.2}{5}\\\\White\ paint = 3.44

Thus she uses 3.44 or 17.2/5 pints of white paint

5 0
3 years ago
Other questions:
  • Solve the equation - x/16=-7/8
    5·1 answer
  • A survey asked 10 boys and 10 girls how many hours they spent playing video games the previous week. The number of hours are giv
    5·2 answers
  • Roberto’s toy car travels at 30 centimeters per second at high speed and 20 cm/sec at low speed. If the car travels for 30 secon
    11·1 answer
  • There are 7 red 3 green 2 blue and 8 purple marbles in a bag if a marble is randomly chosen 250 times predict how many times it
    8·1 answer
  • How do you solve y=1/2x-4
    13·1 answer
  • [10 Points, Algebra 2-simplifying complex fractions]
    5·1 answer
  • Solve 3x2 + 12x = 3.
    10·2 answers
  • $12597.12
    15·1 answer
  • PLEASE PLEASE HELP also refer to the picture it’s more simple
    13·1 answer
  • Solve for a. 15-a/12=22
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!