luckye
06.05.2021 •
Mathematics
What is 1 + 1?
pls help
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Ответ:
11
Step-by-step explanation:
i hiope this helpsss
Ответ:
2
Step-by-step explanation:
1 + 1 = 2
Ответ:
30 years old
Step-by-step explanation:
Let the two ages be A and C.
Then C = (1/2)A, and A = C + 15.
Substitute C + 15 for A in C = (1/2)A:
C = (1/2)(C + 15), or 2C = C + 15.
Then C = 15, and A = C + 15 becomes A = 15 + 15, or A = 30.