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NemiM [27]
3 years ago
13

505.45 55% of what amount​

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0

Answer: 919

Step-by-step explanation: I set up a cross multiplication equation. I set 55 over 100 equal to 505.45 over X. I cross multiplied and did 505.45 times 100, which is 50,545. I then did 50,545 divided by 55 to get the answer of 919.

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A pattern exists among the units digit of the posers of 8 as shown in the diagram.
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Answer:

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Step-by-step explanation:

We can solve this by observing some pattern.

The powers ending in 4 as unit digit are:

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The exponents form the sequence:

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We need to check if 62 belongs to this sequence.

This is an arithmetic sequence with a common difference of 4 and a first term of 2.

The explicit formula is

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We equate this to 62 and solve for n.

2 + 4(n - 1) = 62 \\ 4(n - 1) = 60 \\ n - 1 = 15 \\ n = 16

Since n is a natural number, 62 belongs to the sequence.

Hence

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