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gladu [14]
3 years ago
7

2/5=2÷[blank]fill in the blank.​

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0

Answer:

5

Step-by-step explanation:

2/5 is the same thing as 2÷5 since / and ÷ both mean to divide. So therefore your blank would be 5.

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6 0
3 years ago
What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47+ ...?​
Alex

Answer:

\huge\boxed{18,475}

Step-by-step explanation:

The terms of this sum make the arithmetic sequence.

The fomula of a sum of <em>n</em> terms of an arithmetic sequence:

S_n=\dfrac{[2a_1+(n-1)d]\cdot n}{2}

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a_1=2\\d=17-2=32-12=47-32=15\\n=50

Substitute:

S_{50}=\dfrac{[2\cdot2+(50-1)\cdot15]\cdot50}{2}=(4+49\cdot15)\cdot25=(4+735)\cdot25\\\\=739\cdot25=18,475

3 0
3 years ago
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