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受欢迎的 Word Problems >

Oscar can drive 4 times as fast as Carlos can ride his bicycle. If it takes Carlos 3 hours longer than Oscar to travel 76 miles, how fast can Carlos ride his bicycle?

解答

O sc a r c an d r i v e 4 t im es a s f a s t a s C a r l os c an r i d e hi s bi cyc l e . I f i t t ak es C a r l os 3 h o u rs l o n g er t han O sc a r t o t r a v e l 76 mi l es, h o w f a s t c an C a r l os r i d e hi s bi cyc l e ?

解答

Carlo s^{'} s speed : 19

求解步骤

Translate the problem into an equation:

\frac{76}{x} = \frac{76}{x \cdot 4} + 3

求解

x, \frac{76}{x} = \frac{76}{x \cdot 4} + 3 : x = 19

Carlo s^{'} s speed : 19

流行的例子

Seven times a number minus the number is-48. Find the number.Fifteen added to the quotient of 8 and a number is 7.Each small square in the diagram has side lengths of 1 meter. What is the 面积 of the figure? square meters eight less than product of a number \eta and 1/5 is no more than 95 What is the result when the number 20 is decreased by 75%?