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
Aleksandr-060686 [28]
3 years ago
14

Lexie is making a model of the Empire State Building. The scale of the model is 1 inch = 9 feet. The needle at the top is 31.5 f

eet tall. How big should the needle be on the model?
Mathematics
2 answers:
Alex787 [66]3 years ago
8 0
The needle at the top of the model should be 3.5 inches.
torisob [31]3 years ago
5 0

Answer:

3.5 inches

Step-by-step explanation:

Set up a proportion:

\frac{9 ft}{1 in} = \frac{31.5 ft}{x in}

Cross multiply in order to solve for x:

9x = 31.5

Divide by nine:

x = \frac{31.5}{9}

Simplify:

x= 3.5

You might be interested in
A track coach wants to know how good the runners on another team are.
vfiekz [6]
Time per 100 meters?
3 0
3 years ago
Can someone help me with part c?
Black_prince [1.1K]
I don't understand it sorry
5 0
3 years ago
Determine which ordered pairs are solutions to the equation 3x+7y=21
mafiozo [28]

Answer:

(0,3) and (7,0) are solutions.

Step-by-step explanation:

In a pair of coordinates, they are always listed as (x,y). Since this is the case, you plug in each coordinate to their respective places.

For (0,3)

3(0) + 7(3) = 21

0 + 21 = 21

For (7,0)

3(7) + 7(0) = 21

21 + 0 = 21

To double check that (1,2) isn't a solution:

3(1) + 7(2) = 21

3 + 14 = 21

17 = 21 X

This doesn't work.

Marking as Brainliest is much appreciated.

7 0
3 years ago
Stephanie had seven add an 8 pound of bird seed she use three out of 8 pound to fill a bird feeder f Stephanie had 7 pound of bi
natulia [17]
So if I understand correctly, she had 7 1/8 pounds of birdseed and used 3/8 pound.
Convert the 7 1/8 to an improper fraction [(8*7)+1]/8 =57/8
57/8 - 3/8 = 54/8, which is 6 6/8 which reduces to 6 3/4 pounds left

If she had 7 pounds of birdseed and used 3/8 pounds, you need to find a common denominator to subtract if you can't do it in your head. 8 would be the common denominator, so:
56/8 - 3/8 = 53/8, which is 6 5/8 pounds left
6 0
3 years ago
A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during
ycow [4]
Given that the octagon rotates 360 degrees, it is a given that for every regular division of the polygon (360/8 = 45 degrees), the image would coincide with the pre-image during the rotation. Therefore, the octagon would coincide a total of 8 times as it rotates 360 degrees about its center. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Y=4x and 3x+y=-21. Substitute
    10·1 answer
  • A city zoo builds an enclosure for birds in the shape of a cone with the dimensions shown. There are 42 birds contained in the e
    10·2 answers
  • To newtons second law of motion the force acting on an object and very directly with the objects acceleration suppose that I for
    6·1 answer
  • Runners Competing in the 100 m Dash
    8·1 answer
  • Jessica has an account with a credit union. Her account earns 2.2% simple interest yearly. Exactly a year and a half ago, she op
    10·1 answer
  • What is 28% as a fraction
    5·2 answers
  • GIVING BRAINLIEST TO BEST ANSWER!!!
    6·2 answers
  • Which of the following best describes the relationship between the variables on the scatter plot below?
    10·1 answer
  • A regulation basketball hoop has a rim with an 18-inch diameter. What is the approximate length around the rim of a regulation b
    14·2 answers
  • Mia crosses a river. Please see attached photo
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!