camila9022
28.01.2020 •
Mathematics
Peter's number is nine more than anna's. the sum of their numbers is 63.what are their numbers?
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Ответ:
Step-by-step explanation:
Let :-
Anna's number = x - 9Peter's number = xBy Question :-
x + x - 9 = 63 2x - 9 = 63 2x = 63 + 9 2x = 72x = 72÷ 2x = 36Peter's Number :-
x = 36Anna's number :-
x - 9 = 27Ответ:
answer:
7
step-by-step explanation:
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