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شائع Word Problems >

The sum of three numbers is 84. The first number is 6 less than the second. The third number is 4 times the second. What are the numbers?

الحلّ

T h e s u m o f t h ree n u mb ers i s 84. T h e f i rs t n u mb er i s 6 l ess t han t h e seco n d . T h e t hi r d n u mb er i s 4 t im es t h e seco n d . Wha t a re t h e n u mb ers ?

الحلّ

The numbers : 9, 15, 60

خطوات الحلّ

Represent the numbers with

x, y, z

:

number 1 : x

number 2 : y

number 3 : z

A.T.Q.:

x + y + z = 84

x = y - 6

z = 4 y

x + y + z = 84, x = y - 6, z = 4 y : x = 9, y = 15, z = 60

The numbers : 9, 15, 60

أمثلة شائعة

What's the circumference of this circular pond if its diameter is 3.8 m? Give your answer to 1 decimal place.The difference of twice a number and 2 is less than-24.eight more than the quotient of a number and 9 is equal to 2 The radius of a circle is 4 miles. What is the circle's area?Bridgette earned some money doing odd jobs last summer and put it in a savings account that earns 12% interest compounded annually. After 5 years, there is 1,000.00 in the account. How much did Bridgette earn doing odd jobs?Round your answer to the nearest cent.