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grandymaker [24]
3 years ago
11

How is 0.1363636363636363636... written as a fraction in simplest form? .

Mathematics
1 answer:
erik [133]3 years ago
8 0

Answer:

3/22

Step-by-step explanation:

There's a very neat trick for this kind of problem.

First, choose a letter to represent the number.

n = 0.1363636...

Observe that there is a 2-digit block that repeats ("36"), but that block does not repeat immediately to the right of the decimal point.  Do two muliplications, one to put the decimal point in front of the repeating block, the other to put the decimal point after the block.

    10n =    1.363636...

1000n = 136.363636...

Here comes the cool part:  subtract the first equation from the second.

990 n = 135  See? The repeating decimal parts, all lined up as they are, subtract to zeros.

Finally, n = 135/990 = 15/110 = 3/22

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See question in image and show workings​<br><br>Note : 1 nautical mile = 1.86km
ycow [4]

Answer:

a)

AB is on the latitude 30°N.

<u>Find AB:</u>

  • AB = 2*3.142*6400*cos 30°*(32+35)/360 = 6482.15 km

BC is along longitude 35°W

<u>Find BC:</u>

  • BC = 2*3.142*6400*(30 + 20)/360 = 5585.77 km

<u>Total distance traveled:</u>

  • 6482.15 + 5585.77 = 12067.92 km

<u>Convert the distance to nautical miles:</u>

12067.92/1.86 = 6488.13 nautical miles

b)

<u>Find the average speed:</u>

  • 6488.13/22 = 294.92 nautical miles / hour

<u>Note</u>. <em>This is unrealistically high speed for a ship, this must be a plane or the time given wrong.</em>

3 0
2 years ago
Joe is considering taking out along with the principal of $15,500 From one of two banks. Bank A charges and interest rate of 6%,
ki77a [65]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total cost of the loan at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount taken as loan.

Considering bank A's offer

From the information given,

P = $15500

r = 6% = 6/100 = 0.06

n = 12 because it was compounded 12 times in a year.

t = 8 years

Therefore,

A = 15500(1 + 0.06/12)^12 × 8

A = 15500(1 + 0.005)^96

A = 15500(1.005)^96

A = $25019.2

The interest paid is

25019.2 - 15500 = $9519.2

Considering bank B's offer

From the information given,

P = $15500

r = 6.5% = 6.5/100 = 0.065

n = 12 because it was compounded 12 times in a year.

t = 7 years

Therefore,

A = 15500(1 + 0.065/12)^12 × 7

A = 15500(1 + 0.0054)^84

A = 15500(1.0054)^84

A = $24366

The interest paid is

24366 - 15500 = $8866

The interest that would by paid on bank B's offer is lower than that of bank A and the duration of the loan offer from bank B is shorter than that of bank A.

Therefore,

Bank A gives you more time to pay up the loan and you end up paying more interest

Bank gives you lesser time to pay up the loan and you end up paying lesser interest.

3 0
3 years ago
Please help and explain
Alja [10]

corn = 15%

angle = (15/100)×360

= 54°

7 0
3 years ago
Outline the process for inscribing a square in a circle. Perform the construction in GeoGebra, and take a screenshot of the cons
Amiraneli [1.4K]

Answer:

Mark a circle with point A in the center

Make two points across from each othe at the top and bottom of the circle. Mark them as B, C, D, and E

Connect the point B, C, D, and E using line segments

4 0
3 years ago
Please help it’s timed !!!! 80 points!!!!
Irina18 [472]

Answer:

The answer to your question is the letter a) √3/3

Step-by-step explanation:

Data

find tan 30°

Use the triangle 30°-60°-90°  (see the picture below)

Tangent is the trigonometric function that relates the Opposite side and the adjacent side.

                     tan Ф = Opposite side / Adjacent side

-Substitution

                    tan Ф = 1/√3  

            or     1/√3  √3/√3 = √3/3

3 0
3 years ago
Read 2 more answers
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