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
pochemuha
3 years ago
14

A model satellite is 7 in wide. If it was built with a scale of 1 in: 2 yd, then how wide is the real satellite?​

Mathematics
1 answer:
miskamm [114]3 years ago
8 0

Answer:

14yd

Step-by-step explanation:

 Scale of the model:

           1in  to 2yd

This suggest that for every 1in on the model, the actual distance is 2yd.

So;

          A model 7in wide will actually be:

               1in          to     2yd

               7in       will be 7 x 2  = 14yd

You might be interested in
A certain college graduate borrows 7864 dollars to buy a car. The lender charges interest at an annual rate of 13%. Assuming tha
White raven [17]

Answer:

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = =$1573.17

Step-by-step explanation:

Consider A represent the balance at time t.

A(0)=$ 7864.

r=13 % =0.13

Rate payment = $k

The balance rate increases by interest (product of interest rate and current balance) and payment rate.

\frac{dB}{dt} = rB-k

\Rightarrow \frac{dB}{dt} - rB=-k.......(1)

To solve the equation ,we have to find out the integrating factor.

Here p(t)= the coefficient of B =-r

The integrating factor =e^{\int p(t) dt

                                     =e^{\int (-r)dt

                                     =e^{-rt}

Multiplying the integrating factor the both sides of equation (1)

e^{-rt}\frac{dB}{dt} -e^{-rt}rB=-ke^{-rt}

\Rightarrow  e^{-rt}dB - e^{-rt}rBdt=-ke^{-rt}dt

Integrating both sides

\Rightarrow \int e^{-rt}dB -\int e^{-rt}rBdt=\int-ke^{-rt}dt

\Rightarrow e^{-rt}B=\frac{-ke^{-rt}}{-r} +C        [ where C arbitrary constant]

\Rightarrow B(t)=\frac{k}{r} +Ce^{rt}

Initial condition B=7864 when t =0

\therefore 7864= \frac{k}{r} - Ce^0

\Rightarrow  C= \frac{k}{r} -7864

Then the general solution is

B(t)=\frac{k}{r}-( \frac{k}{r}-7864)e^{rt}

To determine the payment rate, we have to put the value of B(3), r and t in the general solution.

Here B(3)=0, r=0.13 and t=3

B(3)=0=\frac{k}{0.13}-( \frac{k}{0.13}-7864)e^{0.13\times 3}

\Rightarrow- 0.48\frac{k}{0.13} +11614.98=0

⇒k≈3145.72

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = ${(3145.72×3)-7864}

                                                 =$1573.17

4 0
3 years ago
James and Tyson are buds. The sum of their ages is 97. The difference of their ages is 19. Find their ages.
sweet [91]

Answer:

James is 58 and Tyson is 39 years old.

Step-by-step explanation:

x + y = 97

x - y = 19    +

--------------

2x = 116

x = 58

--------------

y = 97 - 58

y = 39

7 0
2 years ago
AYO HELP ME PLEASE
myrzilka [38]

Answer:

Start at 80(y) go to 10:00(x)

Step-by-step explanation:

Joey's house is the same distance to his friend's house as his friend's house is to his. This means that if the travel at the same rate the rate of change (slope) will be the same. However because the friend is going the opposite direction of joey the rate of change (slope) will have the opposite sign (negative vs positive, down vs up)

6 0
2 years ago
Can someone please explain this
Pani-rosa [81]

Answer:

x = 7

Step-by-step explanation:

There is a total of 180 degrees in a triangle. To solve you add the other angles and set = to 180 then solve for x

180 = 33 + 90 + 7x +8

172 = 33 + 90 + 7x

139 = 90 +7x

49 = 7x

7 = x

6 0
2 years ago
HELP ASAP
lora16 [44]
I solved it on a piece of paper. I can not answer why I got the same answer, but I hope my method helped

3 0
2 years ago
Other questions:
  • Write five and eight tenths in standard decimal form
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=3%20%5Cdiv%20153%20%3D%20" id="TexFormula1" title="3 \div 153 = " alt="3 \div 153 = " align="a
    11·2 answers
  • WHAT is 1+6+8+9+7-5+81
    15·1 answer
  • Duc works for a salary of $2,200 per month. His computed hourly rate of pay is $13.75 per hour. Although Duc earns a salary, he
    9·2 answers
  • What is the solution to this system of equations
    14·1 answer
  • A coin has heads on one side and tails on the other the coin is tossed 12 tossed 12 times and lands heads up 4 times which best
    6·1 answer
  • Find the area of the shaded region Gh= 13yd
    15·1 answer
  • What is the equation of the line with slope of ½ , and which passes through the point <br> (4, - 5)?
    8·1 answer
  • Working at a Restaurant in Downtown Charlotte:
    11·1 answer
  • Given triangle XYZ:<br> Angle X = 90°<br> Angle Y = 45°<br> Angle Z=
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!