en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

The product of 2 numbers is 4.2. What are the 2 numbers if their sum is 4.2.

Solution

The product of 2 numbers is 4.2. What are the 2 numbers if their sum is 4.2.

Solution

The numbers : 1.64174 \dots, 2.55825 \dots or 2.55825 \dots, 1.64174 \dots

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x y = 4.2

x + y = 4.2

x y = 4.2, x + y = 4.2 : (x = 1.64174 \dots, y = \frac{21 + 21}{10} x = 2.55825 \dots, y = \frac{21 - 21}{10})

\frac{21 + 21}{10} = 2.55825 \dots

\frac{21 - 21}{10} = 1.64174 \dots

The numbers : 1.64174 \dots, 2.55825 \dots or 2.55825 \dots, 1.64174 \dots

Popular Examples

Bruce puts 500.00 into an account to use for school expenses. The account earns 7% interest, compounded continuously. How much will be in the account after 5 years?The area of a circle is 25𝜋 square kilometers. What is the circumference?Find two consecutive whole numbers that sqrt(69) lies between.The diameter of a circle is 5in. Find its circumference in terms of pipi.you jog 3.6 miles in 30 minutes at that rate how long will it take you to jog 4.8 miles