ShadowHedgehog1414
23.02.2021 •
Mathematics
The shape of each lateral face of a
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Ответ:
Follow these steps
Step-by-step explanation:
Twelve years ago Jane was five times as old as Anne.
J-12=5(A-12)
In three years time, Anne will be half of Jane's age.
A+3=1/2(J+3)
Simplify and solve this system of equations:
J-12=5(A-12)
A+3=1/2(J+3)