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mari33312
08.12.2019 •
Mathematics
Aworker's salary was reduced by 60%. by what percent must the new salary be raised to bring it back to the original amount
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Ответ:
To get back the original amount ,we find what must be multiplied to 0.4 to give 1.
Let the number that will be multiplied to 0.4 to give 1 be y, then
0.4y = 1
y = 1/0.4 = 2.5 = = 1 + 1.5 = 150%
Therefore, the new saraly must be raised by 150% to bring it back t the original amount.
Ответ:
A. 8x -8
Step-by-step explanation:
"Simplified" in this context means like terms are combined and the result is expressed as a sum of monomials.
A — is already simplified . . . (cannot be simplified)
B — simplifies to 7x
C — simplifies to 13x
D — simplifies to 13x
E — simplifies to -2x