BustD0wnAnt
13.04.2020 •
Mathematics
The sum of two numbers is 53 and the difference is 15 . What are the numbers?
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Ответ:
34 and 19.
Step-by-step explanation:
If the numbers are x and y:
x + y = 53
x - y = 15 Add the 2 equations:
2x + y - y = 68
2x = 68
x = 34.
As they add up to 53:
y = 53 - 34 = 19.
Ответ:
f(4), g(-3) maybe idk..
Step-by-step explanation: