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
Lelechka [254]
3 years ago
5

A student wants to know the approximate distance between London and Beijing. Using a string, she finds that the distance on a gl

obe between London and Beijing is about 36 centimeters and between London and New York is about 22 centimeters. The actual distance between London and New York is about 5000 kilometers. If she lets d represent the approximate distance in kilometers between London and Beijing, what is d rounded to the nearest whole number?
Mathematics
2 answers:
Montano1993 [528]3 years ago
8 0

Answer:

8182 kilometers

Step-by-step explanation:

A correct proportion to use is 22 over 5,000 = 36 over d

Cross multiply to get 22d = 5,000 x 36. Then, solve d. d = 8181.81.......so the approximate distance rounded to the nearest whole number from London to Beijing is 8182 kilometers.

Hope This Is Right.....

aliya0001 [1]3 years ago
7 0

Answer: 8182

Step-by-step explanation: a good proportion to use is 22 over 5000= 36 over the mystery number.( in this case, we will use D). then we cross multiply 22xd=5000x36. then we solve for D which is about 8181.81. therefore the rounded answer is 8182.

hope this was helpful!

You might be interested in
Use intercepts to graph the linear equation -2x+6y=18 .
VikaD [51]
Answer: (0,3) and (-9,0)
————————
-2(0) + 6y = 18
6y = 18
y = 3 so…(0,3)
————————
-2x + 6(0) = 18
-2x = 18
x = -9 so.. (-9,0)
6 0
2 years ago
Eli invested $ 330 $330 in an account in the year 1999, and the value has been growing exponentially at a constant rate. The val
Cloud [144]

Answer:

The value of the account in the year 2009 will be $682.

Step-by-step explanation:

The acount's balance, in t years after 1999, can be modeled by the following equation.

A(t) = Pe^{rt}

In which A(t) is the amount after t years, P is the initial money deposited, and r is the rate of interest.

$330 in an account in the year 1999

This means that P = 330

$590 in the year 2007

2007 is 8 years after 1999, so P(8) = 590.

We use this to find r.

A(t) = Pe^{rt}

590 = 330e^{8r}

e^{8r} = \frac{590}{330}

e^{8r} = 1.79

Applying ln to both sides:

\ln{e^{8r}} = \ln{1.79}

8r = \ln{1.79}

r = \frac{\ln{1.79}}{8}

r = 0.0726

Determine the value of the account, to the nearest dollar, in the year 2009.

2009 is 10 years after 1999, so this is A(10).

A(t) = 330e^{0.0726t}

A(10) = 330e^{0.0726*10} = 682

The value of the account in the year 2009 will be $682.

4 0
3 years ago
NEED HELP! The endpoints of WX are W(2,-7) and X(5,-4).
jeyben [28]

Answer:

3√2 or 4.24

Step-by-step explanation:

d(w,x) = √(5-2)² + (-4-(-7))² = √18 = 3√2               (4.24)

3 0
3 years ago
20 points! Clear answers and good descriptions!<br> Thanks! :)
balu736 [363]

Answer:

1= b

2= f

Step-by-step explanation:

8 0
2 years ago
Honestly I dont know how to do this just please help me
V125BC [204]
F(x) = 3x - 2
f(8) = 3(8) - 2
f(8) = 24 - 2
f(8) = 22
f(-5) = 3(-5) - 2
f(-5) = -15 - 2
f(-5) = -17
f(8) - f(-5) = 22 - (-17)
f(8) - f(-5) = 39
Hope this helped! Good luck! :)
7 0
3 years ago
Other questions:
  • A field is a unit of data consisting of one or more ________.
    9·1 answer
  • Please answer ASAP: Which of the following represent an exponential growth function?
    10·2 answers
  • How to rename 30,000.
    15·2 answers
  • The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week.
    15·1 answer
  • Can someone help.With geometry​
    15·1 answer
  • What is 52/7 written as a mixed number?
    14·1 answer
  • Please help! Correct answer only please! I need to finish this assignment by today.
    6·2 answers
  • You are working at a solar farm. A row of solar panels is connected by electrical wires that run between panels.
    9·2 answers
  • The Royal Fruit Company produces two types of fruit drinks. The first type is 30% pure fruit juice, and the second type is 80% p
    11·1 answer
  • Can someone please answer // Find the central angle given that the measure of the arc is 200°
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!