sophiaaacake
22.08.2019 •
Mathematics
This is urgent! : (
emma is 3 times as old as tara.
in another 7 years emma will be twice as old as tara will be.
write at least one question and use algebra to find emma's age now.
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Ответ:
x is Tara's age now
Emma is 3x
3x + 7 = 2(x+7)
3x + 7 = 2x + 14
x = 7
Emma is 7 years old and tara 21
Ответ: