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GabiGabrielaGamer
@GabiGabrielaGamer
October 2020
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Determine um número real “a” para que as expressões [tex] (\frac{2a+10}{6}) (\frac{3a+6}{8} )[/tex] sejam iguais.
(A) 18 (B) 19 (C) 20 (D) 22
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Luanferrao
Verified answer
Se as expressões são iguais, basta igualá-las.
Agora, vamos multiplicar em cruz.
1 votes
Thanks 1
fagnerdi
2a+10
=
3a+6
6 8
16a+80=18a+36
16a-18a=36-80
-2a=-44 (-1)
2a=44
a=44/2
a=22
0 votes
Thanks 0
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Lista de comentários
Verified answer
Se as expressões são iguais, basta igualá-las.Agora, vamos multiplicar em cruz.
6 8
16a+80=18a+36
16a-18a=36-80
-2a=-44 (-1)
2a=44
a=44/2
a=22