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The product of two numbers is 4.2. What are the two numbers if their sum is 4.4?

Solution

The product of two numbers is 4.2. What are the two numbers if their sum is 4.4?

Solution

The numbers : 1.4, 3 or 3, 1 \frac{2}{5}

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x y = 4.2

x + y = 4.4

x y = 4.2, x + y = 4.4 : (x = 1.4, y = 3 x = 3, y = \frac{7}{5})

Convert improper fractions to mixed numbers:

\frac{7}{5} = 1 \frac{2}{5}

The numbers : 1.4, 3 or 3, 1 \frac{2}{5}

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