es

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

A woman can bicycle 78 miles in the same time as it takes her to walk 18 miles. She can ride 10 mph faster than she can walk. How fast can she walk?

Solución

A w o man c an bi cyc l e 78 mi l es in t h e s am e t im e a s i t t ak es h er t o w a l k 18 mi l es . S h e c an r i d e 10 m p h f a s t er t han s h e c an w a l k . Ho w f a s t c an s h e w a l k ?

Solución

walking speed : 3

Pasos de solución

Translate the problem into an equation:

\frac{78}{x + 10} = \frac{18}{x}

Resolver para

x, \frac{78}{x + 10} = \frac{18}{x} : x = 3

walking speed : 3

Ejemplos populares

Destiny opened a savings account and deposited 700.00 as principal. The account earns 11% interest, compounded quarterly. What is the balance after 3 years?A number when doubled results in a number that is 5 more than the original number.a number that when decreased by 30% is 40 the sum of 2 times a number and 7 is equal to 9 The sum of three numbers is 15. The sum of twice the first number, 5 times the second number, and 6 times the third number is 56. The diferencia between 5 times the first number and the second number is 29. Find the three numbers.