ru

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Популярное Word Problems >

A car travels 30 1/5 miles in 2/(3) of an hour. What is the среднее speed, in miles per hour, of the car?

Решение

A c a r t r a v e l s 30 \frac{1}{5} mi l es in \frac{2}{3} o f an h o u r . Wha t i s t h e a v er a g e s p ee d, in mi l es p er h o u r, o f t h e c a r ?

Решение

speed : 45.3

Шаги решения

Translate the problem into an equation:

\frac{151}{5} = x \frac{2}{3}

Решите для

x, \frac{151}{5} = x \frac{2}{3} : x = \frac{453}{10}

После упрощения получаем

speed : 45.3

Популярные примеры

Rosa opened a savings account and deposited 700.00 as principal. The account earns 14% interest, compounded annually. What is the balance after 3 years?The диаметр of a circle is 2 inches. If pi = 3.14, what is the area of the circle After 85% reduction a new sofa is on sale for 93\$. What was the original price of the sofa The diameter of a circle is 34 feet. What is the circle's окружность?You deposit 50 in an investment account that earns 3.2% annual interest compounded annually.What is the balance of the account after 4 years?