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شائع 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 50. How old is Joe?

الحلّ

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 50. Ho w o l d i s J oe ?

الحلّ

Joe^{'} s age is : 18 \frac{2}{5}

خطوات الحلّ

Translate the problem into an equation:

\frac{1}{2} x + x + 4 + x = 50

\frac{1}{2} x + x + 4 + x = 50, x

حلّ لـ:

x = \frac{92}{5}

حوّل من كسر تخيّليّ لعدد مختلط:

18 \frac{2}{5}

Joe^{'} s age is : 18 \frac{2}{5}

أمثلة شائعة

The radius of a circle is 8 ft. Find its circumference in terms of pipi twice the difference of a number and 3 is equal to 2 four times the difference of 11 and a number gives 60 Suppose that 18,000 is deposited for eight years at 3% APR. Calculate the interest earned if interest is compounded weekly. Round your answer to the nearest cent.The radius of a circle is 12 m. Find its circumference in terms of pipi.