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princesspayton9
princesspayton9 princesspayton9
  • 24-04-2016
  • Mathematics
Answered

which expressions are equivalent to -2.5(1 -2n) - 1.5n ?

choose ALL that are equivalent

A-2.5n -3.5n
B-2.5n + 3.5n
C-2.5 - 6.5n
D-2.5 - n(5 -1.5)
e. -2.5 + n(5 - 1.5)

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 24-04-2016

distribute then add
a(b-c)=ab-ac
-2.5(1 -2n) - 1.5n
-2.5(1-2n)= -2.5-(-5n)=-2.5+5n
now add the other bit
-2.5+5n-1.5n
-2.5+3.5n
B is a corect answer

find others
distribute and add last 2 choices

D=-2.5-3.5n
E=-2.5+3.5n

E is correc
t
answers to pick are B and E

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