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CaHeK987 [17]
3 years ago
12

Express 81 as the sum of first nine consecutive odd numbers

Mathematics
1 answer:
matrenka [14]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

The sum of the first 9 consecutive odd numbers is

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 = 81

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Bill bought 38 1/2 feet of wire fencing to put around his blueberry plants. He cut the wire into several pieces, each one measur
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Answer: 7

Step-by-step explanation:

You are given that Bill bought 38 1/2 feet of wire. Convert the mixed fraction into improper fraction.

The length L1 = 77/2

You are given that he cut the wire into several pieces, each one measuring 5 1/2 feet. Convert it too to improper fraction.

The length L2 = 11/2

To know how many number of pieces of wire he have after making the cuts, divide length L1 by length L2. That is,

L1/L2 = 77/2 ÷ 11/2

Change the division to multiplication by reciprocating 11/2 to 2/11

77/2 × 2/11 = 77/11 = 7

Therefore, he had 7 pieces of wires after making the cuts.

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2 years ago
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3 years ago
There is a game at the carnival that costs $20 to play. There are two outcomes: either you win $100 , or you lose. To play you r
Taya2010 [7]
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2 years ago
Round 17.4 to the nearest tenth.
djyliett [7]
17.4, since there are no other decimal number values.
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3 years ago
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An equivalent expression would be 2x+4
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