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Популярное Word Problems >

Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 74. How old is Joe?

Решение

L a u re n^{'} s a g e i s ha l f o f J o e^{'} s a g e . E mma i s f o u r ye a rs o l d er t han J oe . T h e s u m o f L a u re n, E mma, an d J o e^{'} s a g e i s 74. Ho w o l d i s J oe ?

Решение

Joe^{'} s age is : 28

Шаги решения

Translate the problem into an equation:

\frac{1}{2} x + x + 4 + x = 74

Решите для

x, \frac{1}{2} x + x + 4 + x = 74 : x = 28

Joe^{'} s age is : 28

Популярные примеры

a number equals six less than four times a number the product of the number and eight How much money will there be in an account at the end of 9 years if 3000 is deposited at 7% interest compounded semi-annually?the quotient of a number and nine A bank offers an investment account with an annual interest rate of 1.17% compounded monthly. Bob invests 3500 into the account for years.Answer the questions below. Do not round any intermediate computations, and round your final answers to the nearest cent. If necessary, refer to the list of financial formulas. How much interest is earned on Bob's investment after 2 years