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Nastasia [14]
3 years ago
9

Express in seconds. 30" 45" 50"

Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0

Answer:

45"

Step-by-step explanation:

(3/4 x 60 )"

=45"

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The given addition exercise is:

\frac{2}{5}+\frac{1}{3}

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Therefore, we can fill in the vacant boxes as shown below:

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