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cestrela7 [59]
3 years ago
7

Simplify the expression 5(2w+3)+6w

Mathematics
2 answers:
Dahasolnce [82]3 years ago
6 0
5(2w+3)+6w = 5*2w + 5*3 + 6w = 16w + 15

Hope I helped ;))))).
I really do.
maria [59]3 years ago
3 0
You have distribute the 5 into the 2 which is 10w +15 +30w.
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QveST [7]
X representa o numero das suas respostas certas.
y represnta o numero das suas respostas erradas.
O total de perguntas <span>é 25, portanto
x + y = 25

Agora tratamos do dinheiro.
Come</span>ça com <span>R$ 500,00
Pelas x respostas certas, recebe 200x.
Pelas y respostas errads perde 150y.
O total de dineheiro inicial mais os ganhos menos as perdas s</span>ão iguais a
R$ 600,00, portanto
500 + 200x - 150y = 600
200x - 150y = 100
20x - 15y = 10

Temos um sistema de duas equações com duas variaveis.

<span>x + y = 25</span>
20x - 15y = 10

      15x + 15y = 375
+    20x - 15y = 10
---------------------------
       35x         = 385
           x         = 11

x + y = 25

11 + y = 25

y = 14

Resposta: Errou 14 perguntas.


5 0
3 years ago
Which function passes through the points (2, 15) and (3, 26)?
igor_vitrenko [27]
<span>Which function passes through the points (2, 15) and (3, 26)?
</span> 
Its B
7 0
3 years ago
Read 2 more answers
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