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
BartSMP [9]
3 years ago
9

The floor plan of a ballroom is shown at right. The scale is 3 centimeters : 4 meters.

Mathematics
1 answer:
iragen [17]3 years ago
6 0
Given:
scale: 3 cm : 4 m
Length 12 cm
Width 9 cm

We need to convert cm to m.
length: 12cm / 3cm * 4m = 4 * 4m = 16 meters
width: 9cm / 3cm * 4m = 3 * 4m = 12 meters

Area = length * width
Area = 16 m * 12 m
Area = 192m²

Area in  cm: 12 cm * 9 cm
Area in cm: 108 cm²

cm : m ⇒ ratio format

ratio: a:b = c:d where ad = bc

108 : 192 = 12² : 16²
108 : 192 = 144 : 256

a = 108 ; b = 192 ; c = 144 ; d = 256

108 * 256 = 192 * 144
27,648 = 27,648 
You might be interested in
Please solve for g!!!!
laiz [17]
The answer to the question

3 0
3 years ago
Read 2 more answers
What does a+b-3 equall
AlladinOne [14]

It is 3ab ;).........

5 0
3 years ago
Read 2 more answers
It is March 30th and your project is due in about 7 weeks which of the following is the most accurate due date for your project
NNADVOKAT [17]
7 weeks = 7 x 7 = 49 days.
March has 31 days so from March 30 to March 31: 1 day
April has 30 days.
31 days already 
49 - 31 = 18
so May 18 is the most accurate due date
6 0
3 years ago
Read 2 more answers
Find the value of x that makes A || B.<br> x=?
Norma-Jean [14]

Answer:

78

Step-by-step explanation:

a

7 0
3 years ago
Lauren drew a triangle. Its sides were 7\text{ mm}7 mm7, start text, space, m, m, end text, 9\text{ mm}9 mm9, start text, space,
kkurt [141]

Answer: The triangle has two angles of 49.99° and one angle of 80.02°

Step-by-step explanation:

We have a triangle with sides of 7mm, 9mm and 7mm

The triangle has two equal sides, so this means that this is a Isosceles triangle.

The angles are

The base of this triangle is the side with 9mm, and the two base angles are equal.

We can find the base angles by drawing a line from the middle of the base to the top vertice, then we will have a triangle rectangle with a hypotenuse of 7mm, a adjacent cathetus of 4.5 mm, and with this two things we can find the base angle by using the relation

cos(a) = adjacent cathetus/hypotenuse = 4.5mm/7mm

a = Acos(4.5/7) = 49.99°

Then in our isosceles triangle we have two base angles of 49.99°

To find the other angle we can use the fact that the 3 inner angles of a triangle adds up top 180°

Then

49.99° + 49.99° + A = 180°

A = 180° - 2*49.99° = 80.02°

8 0
3 years ago
Other questions:
  • The length of a rectangle is 4n centimeters, and it is twice as long as the width. The perimeter of the rectangle is twice as lo
    12·1 answer
  • Which polygon has four sides, two sets of parallel sides, and sides that are not all equal?
    11·2 answers
  • Find the coordinates of the points of intersection of the graphs with coordinate axes:
    14·1 answer
  • After receiving a discount of 7.5% on its bulk order of notebooks, John's Office Supply pays $7400. What was the price of the or
    13·1 answer
  • Which of these is the quadratic parent function?
    6·1 answer
  • In 1999, the student enrolment at a college was 13% more than it was in 1998. If the enrolment was 36,612 in 2000, which was 8%
    11·1 answer
  • Celik, S. (2011). A media comparison study on first aid instruction. Health Education Journal. 72(1), 95-101
    7·1 answer
  • Forty more than the product of 2 and a number is twelve. What is the number?
    13·1 answer
  • an entertainment firm offers several DJ choices and light show that range in price based on the rental time period. the DJ's cos
    11·1 answer
  • I need help here’s a picture can somone explain what I need to do??
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!