sreyarenjini sreyarenjini

17-01-2020
Mathematics

contestada

Find two numbers if their sum is 7.2 and their difference is 2.7. Pls help me !

Respuesta :

pritiseth81 pritiseth81

30-01-2021

Answer:

4.95 and 2.25

Step-by-step explanation:

Values of x:

x + y = 7.2

x = 7.2 - y

x - y = 2.7

x = 2.7 + y

Value of y:

7.2 - y = 2.7 + y

2y = 4.5

y = 2.25

Value of x:

x + 2.25 = 7.2

x = 4.95

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