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Work - A cyclist left point A of the circular track, and 30 minutes later a motorcyclist followed him. In 10 minutes, it contains: tables, drawings, the latest literary sources, the year of submission and defense of the work - 2017. In the work A cyclist left point A of the circular track, and after 30 minutes a motorcyclist went after him. After 10 minutes (Macroeconomics and public administration), the relevance of the research topic is revealed, the degree of development of the problem is reflected, based on a deep assessment and analysis of scientific and methodological literature, in the work on the subject of Macroeconomics and public administration, the object of analysis and its issues are comprehensively considered, both from the theoretical and practical sides, the goal and specific tasks of the topic under consideration are formulated, there is a logic of presentation of the material and its sequence.
From point A of the circular track, the length of which is 75 km, two cars started simultaneously in the same direction. The speed of the first car is 89 km/h, the speed of the second car is 59 km/h. In how many minutes after the start will the first car be ahead of the second by exactly one lap?
The solution of the problem
This lesson shows how, using a physical formula to determine the time at uniform motion: , make a proportion to determine the time when one car overtakes another in a circle. When solving the problem, a clear sequence of actions is indicated for solving such problems: we introduce a specific designation for what we want to find, we write down the time it takes for one and the second car to overcome a certain number of laps, given that this time is the same value - we equate the resulting equalities . The solution is finding an unknown quantity in a linear equation. To get the results, be sure to remember to substitute the number of laps obtained in the formula for determining the time.
The solution of this problem is recommended for students of the 7th grade when studying the topic “Mathematical language. Mathematical model" ( Linear Equation with one variable). When preparing for the OGE, the lesson is recommended when repeating the topic “Mathematical language. Mathematical model".
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« A bicycle left point A of the circular track.» - 251 jobs found
(impressions: 606 , answers: 13 )
A cyclist left point A of the circular track, and after 10 minutes a motorcyclist followed him. 2 minutes after departure, he caught up with the cyclist for the first time, and 3 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 5 km. Give your answer in km/h.
Job B14()(impressions: 625 , answers: 11 )
A cyclist left point A of the circular track, and after 20 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 10 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 10 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 691 , answers: 11 )
A cyclist left point A of the circular track, and after 10 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 15 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 10 km. Give your answer in km/h.
Answer: 60
Job B14()(impressions: 613 , answers: 11 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 47 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 47 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 610 , answers: 9 )
A cyclist left point A of the circular track, and after 20 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 19 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 19 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 618 , answers: 9 )
A cyclist left point A of the circular track, and after 20 minutes a motorcyclist followed him. 2 minutes after departure, he caught up with the cyclist for the first time, and 30 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 50 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 613 , answers: 9 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 26 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 39 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 622 , answers: 9 )
A cyclist left point A of the circular track, and after 50 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 12 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 20 km. Give your answer in km/h.
The correct answer has not yet been determined
Task B14 ("Lesson Tangent to a circle" - Prove that line AC is tangent to a given circle. Task 1. Given: okr. (O; OM), MR - tangent, angle KMR = 45?. Calculate the length of the sun if OD=3cm. General lesson. Draw a tangent to the given circle. Theme: "Circumference". Solution: Problem solving. Practical work. Make labels and notes.
"Tangent to circle" - Tangent property. Let d be the distance from the center O to the line KM. Segments AK and AM are called segments of tangents drawn from A. Tangent to a circle. Then. The tangent to the circle is perpendicular to the radius drawn to the tangent point. Proof. Let us prove that if AK and AM are segments of tangents, then AK = AM, ?OAK = ? OAM.
"Circumference and circle" - Calculate. Find the circumference. Find the radius of the circle. Find the area of the shaded figure. A circle. circular sector. Draw a circle with center K and radius 2 cm. Complete the statement. Independent work. Circumference. Circle. Area of a circle. Calculate the length of the equator. The game.
“Circle Equation” - Build in a notebook the circles given by the equations: Center of the circle O (0; 0), (x - 0) 2 + (y - 0) 2 \u003d R 2, x2 + y2 \u003d R 2? equation of a circle centered at the origin. . O (0; 0) - center, R = 4, then x2 + y2 = 42; x2 + y2 = 16. Find the coordinates of the center and the radius if AB is the diameter of the given circle.
"Circumference Grade 6" - Lesson motto: History of number ?. The diameter of the locomotive wheel is 180 cm. Lambert found for? the first twenty-seven common fractions. Mathematics lesson in grade 6 Mathematics teacher: Nikonorova Lyubov Arkadievna. Lesson plan. Competition "Mosaic of presentations". But you can find an infinite sequence of convergents.
More than 80,000 real tasks of the Unified State Exam 2020
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« a cyclist left point a of the circular track and after 30 minutes following him» - 106 jobs found
(impressions: 613 , answers: 11 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 47 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 47 km. Give your answer in km/h.
Job B14()(impressions: 618 , answers: 9 )
A cyclist left point A of the circular track, and after 20 minutes a motorcyclist followed him. 2 minutes after departure, he caught up with the cyclist for the first time, and 30 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 50 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 613 , answers: 9 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 26 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 39 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 628 , answers: 9 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 10 minutes after departure, he caught up with the cyclist for the first time, and 40 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 40 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 611 , answers: 8 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 39 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 39 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 628 , answers: 8 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 15 minutes after departure, he caught up with the cyclist for the first time, and 54 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 45 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 639 , answers: 8 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 10 minutes after departure, he caught up with the cyclist for the first time, and 44 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 33 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 899 , answers: 7 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 10 minutes after departure, he caught up with the cyclist for the first time, and 30 minutes after that he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 30 km. Give your answer in km/h.
The correct answer has not yet been determined
Job B14()(impressions: 591 , answers: 7 )
A cyclist left point A of the circular track, and after 30 minutes a motorcyclist followed him. 5 minutes after departure, he caught up with the cyclist for the first time, and 49 minutes after that, he caught up with him for the second time. Find the speed of the motorcyclist if the length of the track is 49 km. Give your answer in km/h.