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Sav [38]
3 years ago
12

Which expression is equivalent to (0.5n−0.3)−(0.8n−0.9)?

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0

Answer:

-0.3n + 0.6

Step-by-step explanation:

We can eliminate the parentheses, obtaining:

0.5n - 0.3 - 0.8n + 0.9

and then combine like terms, obtaining:

-0.3n + 0.6

Bezzdna [24]3 years ago
7 0

Answer:

-0.3n + 0.6

Step-by-step explanation:

if we write out the entire expression we have:

0.5n - 0.3 - 0.8n + 0.9 (two negative signs create a positive sign)

then we add and subtract

and receive

-0.3n + 0.6

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Here: Fraction = 3/5
Let, original fraction (before simplifying) = 3x/5x
Then, 3x + 5x = 40
8x = 40
x = 40/8
x = 5

So, 3x = 3(5) = 15 & 5(5) = 25

In short, Your Answer would be 15/25

Hope this helps!
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Answer:

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7.The decimal expression for 5 rupees 5 paise is _______________________.

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