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
erma4kov [3.2K]
3 years ago
6

if the length of a model car is 5 inches & the length of the actual car (real ) is 140 inches. write the scale factor?? 2 qu

estion on a scale drawing the scale factore is 1 in:6 ft a plum tree is 7 inches tall on the drawing/what is the actual height of the tree?
Mathematics
2 answers:
pav-90 [236]3 years ago
8 0
Answer:
Part (a):
The scale factor is: 5/140 = 1/28
Part (b):
The actual height of the tree is: 42 ft

Explanation:
Part (a):
The scale factor means the ratio between the actual length and the drawn length. In other words, scale factor is used to tell you how long a unit measurement in your drawing represents in reality.
To find the scale factor, you have to divide the drawn length by the actual length and simplify.
From the given, we have:
drawn length = 5 inches
actual length = 140 inches
Dividing both numbers, we get:
scale factor = 5/140 = 1/28
This means that each 1 inch in the drawing represents 28 inches of the actual length

Part (b):
I have explained what a scale factor is in part (a). Here, we are given that the scale factor is:
1 in : 6 ft
This means that 1 inch on the drawing is used to represent 6 ft in reality.
We are given that the tree is 7 inches on the drawing, so to get the actual length, all we need to do is cross multiplication as follows:
1 in : 6 ft
7 in : ??
actual height = (7*6) / 1 = 42 ft

Hope this helps :)
Vaselesa [24]3 years ago
6 0
Is this 2 questions or is it just one whole question?
You might be interested in
Simplify 8 - {x - (5 + x)}.
Feliz [49]
8 - {x - (5 + x)}
= 8 - {x - 5 - x}
= 8 + 5
= 13
8 0
3 years ago
Over what interval is the graph of f(x) = –(x + 8)2 – 1 decreasiang<br><br><br><br> help
Degger [83]
Please use " ^ " to denote exponentiation:  

<span>f(x) = –(x + 8)^2 – 1 
Find the first derivative:  f '(x) = -2(x+8)(1)
Set this = to 0:  -2(x+8) = 0
solve for x:  x = -8
Divide the number line into subintervals based upon x=-8:

(-inf, -8) and (-8, inf)

Choose a test value for x from each interval, e. g., -10 from the first interval and 20 from the second.

Subst. this test value into the derivative, shown above.

If the result is + the function is incr on that interval; if - the fn. is decr.

Questions welcome!</span>
5 0
3 years ago
Solve the system of equations.<br> y = 2x + 4<br> y = x2 + x - 2
miss Akunina [59]

Answer:

<u>x=6</u><u> y=16</u>

Step-by-step explanation:

I will use elimination

y=2x+4

y=2x+x-2

*3 y=2x+4 3y=6x+12

*2 y=3x-2 2y=6x-4

3y=6x+12

- 2y=6x. -4

<u>y=16</u>

16=2x+ 4

-4 -4

12= 2x

/2 /2

<u>6=x</u>

7 0
3 years ago
Write 8.62 in word form.
borishaifa [10]
Eight point six two is the answer
7 0
3 years ago
Read 2 more answers
The type of probability that you think will happen
PolarNik [594]

If I know what you're asking, the answer is theoretical probability.

8 0
3 years ago
Other questions:
  • Cara buys 2.5 yards of fabric for a dress that she is making. If the fabric costs $4.50 per yard, what does she pay?
    10·2 answers
  • If the radius of a circle is 14 ft, then the diameter of the circle is _____.
    10·2 answers
  • Brandon Womble has 12070 oranges. If Brandon Womble eats 1400 and then you divide the remaining oranges between 8 people, how ma
    5·1 answer
  • What is t+16 for +=-5
    12·1 answer
  • Write a linear equation that contains the points shown in the table.
    9·1 answer
  • (sinB+1)(cosBtanB-1)
    5·1 answer
  • The point (–7, –3) is located in which quadrant?
    5·2 answers
  • According to research Paul Monroe conducted on the Internet, the base price of a new car is $18,844.00, the options total $2,115
    5·1 answer
  • Matt is 54 3/ inches tall. Nancy is 1 3/8 inches taller than Matt and Jane is 1 1/5
    13·1 answer
  • Evaluate-16 to the power of -3/4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!