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Lostsunrise [7]
3 years ago
8

Two riders, A and B leave the starting line at the same time. A takes 12 minutes to complete one lap and the B takes 18 minutes.

How long in minutes after they will it take for them to meet again at the starting line?
Mathematics
1 answer:
irina [24]3 years ago
3 0
6 minutes after i believ3e ?

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Round 5540.33990183 to 3 decimal place
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5540.340 is rounded to the 3rd decimal place

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Dmitry_Shevchenko [17]

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Step-by-step explanation:

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3 years ago
Printing machine A and printing machine B print the same newspaper printout, but machine B prints at half the rate of machine A.
klemol [59]

Answer:

The answer is below

Step-by-step explanation:

Let us assume the rate of printing in machine A is x per hour and the rate for machine B is y. Given that machine B prints at half the rate of machine A, therefore:

y = (1/2)x                       (1)

Also, both machine produces 200 newspaper printouts, and both operate at different times for a total of 4 hours. Therefore:

200/x + 200/y = 4       (2)

Put y = (1/2)x in equation:

\frac{200}{x}+\frac{200}{(\frac{1}{2} )x}=4\\ \\ \frac{200}{x}+\frac{400}{x}=4\\\\Multiply\ through\ by\ x:\\\\200+400=4x\\\\4x=600\\\\x=150

Put x = 150 in equation y:

y=(1/2)150 = 75

Therefore the rate of machine A is 150 newspapers per hour while that of machine B is 75 newspapers per hour

6 0
3 years ago
What is the measure of anglec to the nearest whole degree? 70° 77° 80° 85°
Annette [7]

Applying the cosine ratio, the measure of angle C in the given image, to the nearest whole degree, is: 77°.

<h3>What is the Cosine Ratio?</h3>

The cosine ratio is given as, cos ∅ = adjacent side/hypotenuse side of a right triangle.

Using the cosine ratio, we have:

cos C = 2/9

C = cos^(-1)(2/9)

C ≈ 77 degrees.

Learn more about the cosine ratio on:

brainly.com/question/15793827

4 0
2 years ago
Simplify (b^4)^3. ❤️ SLAT*_^}
KiRa [710]

Answer:

b^1^2

Step-by-step explanation:

<em>First, multiply by exponent rule.</em>

<em>(x^y)^z=x^y^z</em>

<em>b^4^*^3</em>

<em>Then, multiply by the numbers from left to right.</em>

<em>4*3=12</em>

<em>b^1^2, </em><em>is the correct answer. </em>

6 0
3 years ago
Read 2 more answers
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