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
padilas [110]
4 years ago
6

The perimeter of a rectangle is 120 centimeters. The base is 3 times the height. What are the dimensions of the rectangle? a. h

= 9cm, b = 18 cm c. h = 15 cm, b = 45 cm b. h = 19 cm, b = 57 cm d. h = 10 cm, b = 15 cm Please select the best answer from the choices provided A B C D
Mathematics
1 answer:
Solnce55 [7]4 years ago
3 0

Answer:

base = 45

height = 15

Step-by-step explanation:

p =  2 ( b + h)

p=120

b = 3h

120 = 2 (3h + h)

120 = 8h

h = 15

120 = 2 (b+ 15)

120 = 2b + 30

90 = 2b

45 = b

You might be interested in
Match each set of points with the slope of the line formed by the ordered pairs.
Fynjy0 [20]

1) The slope of the point (0,0) and (2,1) is 1/2.

2) The slope of the point (0,-1) and (2,-5) is -2.

3) The slope of the point (0,7) and (2,4) is -3/2.

4) The points (-1,3) and (-1,-3) has No slope.

5) The slope of the point (1,-3) and (-1,-3) is zero.

<u>Step-by-step explanation:</u>

There are five set of points given in the question.

You need to find out the slope of the line formed by the points.

The formula used to find the slope of a line is given by,

Slope = \frac{y2-y1}{x2-x1}

1) The given points are (0,0) and (2,1)

(x1,y1) ⇒ (0,0)

(x2,y2) ⇒ (2,1)

Slope = \frac{1-0}{2-0}

⇒ 1/2 is the slope.

2) The given points are (0,-1) and (2,-5)

(x1,y1) ⇒ (0,-1)

(x2,y2) ⇒ (2,-5)

Slope = \frac{-5+1}{2-0}

⇒ \frac{-4}{2}

⇒ -2 is the slope.

3) The given points are (0,7) and (2,4)

(x1,y1) ⇒ (0,7)

(x2,y2) ⇒ (2,4)

Slope = \frac{4-7}{2-0}

⇒ -3/2 is the slope.

4) The given points are (-1,3) and (-1,-3)

(x1,y1) ⇒ (-1,3)

(x2,y2) ⇒ (-1,-3)

Slope = \frac{-3-3}{-1+1}

⇒ -6/0 (No slope)

If the denominator of a fraction is zero, the expression is not a legal fraction because it's overall value is undefined.

∴ There is no slope.

5) The given points are (1,-3) and (-1,-3)

(x1,y1) ⇒ (1,-3)

(x2,y2) ⇒ (-1,-3)

Slope = \frac{-3+3}{-1-1}

⇒ 0/-2

∴ The slope is zero.

5 0
4 years ago
Read 2 more answers
A librarian recorded the number of books that were checked out on each of the last 9 days,as shown below. 142, 136, 125, 148, 15
lutik1710 [3]

Mean is the sum of values divided by the count of values.

The sum of values is 1,235.

There are 9 values.

1235/9 = 137.22

4 0
3 years ago
Read 2 more answers
If m∠BAC=(7x+1)° and m∠BCA=(5x+9)°, what is the measure of the vertex angle? Show your work to support your answer.
expeople1 [14]

Answer:

128degrees

Step-by-step explanation:

Note that the given triangle ABC is an isosceles triangle with base angles equal, hence;

m∠BAC = m∠BCA

7x+1 = 5x+9

7x - 5x = 9-1

2x = 8

x = 8/2

x = 4

m∠BAC = 5x+6

m∠BAC = 5(4)+6

m∠BAC = 26 degrees

The vertex angle = 180 - (26+26)

The vertex angle = 180 - 52

The vertex angle = 128degrees

4 0
3 years ago
Help i somebody help
Margarita [4]

Answer:

D

Step-by-step explanation:

27-10=17

Therefore 17 is MORE THAN OR EQUAL TO 16 meaning that is not the part of the solution

Hope this helps !!!

Have a nice day :)

5 0
4 years ago
Is 2.164213562 Rational or Irrational
qwelly [4]
The number you said is rational but im not that sure
8 0
3 years ago
Other questions:
  • Find the sum of the first 30 terms of the sequence below an=3n+2
    10·2 answers
  • Find the equivalent fraction of 4/7
    14·1 answer
  • Please help me with this and thank you
    5·2 answers
  • Find the area of the figure.<br><br> A) 114 cm2 <br> B) 350 cm2 <br> C) 418 cm2 <br> D) 447 cm2
    10·2 answers
  • 17. Let A denote the event that the next request for assistance from a statistical software consultant relates to the SPSS packa
    10·1 answer
  • Hank has read 25 percent of his book. If Hank has read 150 pages, which equation can be used to find the total number of pages i
    13·2 answers
  • 329-29+9=<br><br> plz help<br> !!!!!!!!!!!!!
    8·1 answer
  • The ___ is the set of outputs for a function.
    10·1 answer
  • What is the translation from the preimage to the image in the graph?​
    7·1 answer
  • Expand<br> (2x - 3)4 <br><br> Can you help me expand this by using the binomial theorem?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!