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Mazyrski [523]
3 years ago
12

Help this is due tomorrow

Mathematics
2 answers:
nlexa [21]3 years ago
8 0

Answer:

n = 1.40 (second option)

kolezko [41]3 years ago
4 0

Answer:

The choice second;

n = 1.40

Step-by-step explanation:

0.7n + 0.8n = 2.1 \\ 1.5n = 2.1 \\  \\ n =  \frac{2.1}{1.5}  \\  \\ n =  \frac{21}{15}  \\  \\ n = 1.4

I hope I helped you^_^

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You can multiply them both as fractions or turn the fraction into a decimal and multiply it like that.
5 1/4 will have to turn into an improper fraction which means you have to get rid of the whole number so. To do so you have to multiply the whole number by the denominator which would be 5x4 which is 20 then add it to the numerator so I’d be 21.
Next turn the 3 into a fraction since it’s a whole number it’d be 3/1
Finally multiply straight across 21/4 x 3/1 which is 63/4 and luckily it’s already In it’s simplified form
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Suppose you have line AB on a coordinate plane located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), line AB
masya89 [10]

Answer:

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