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lapo4ka [179]
3 years ago
10

Mary has nickels and dimes in her purse. She has a total of 30 coins worth $2.40. How many nickels does Mary have?​

Mathematics
1 answer:
V125BC [204]3 years ago
5 0

Answer:

72 nickels idk why she has so many

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Step-by-step explanation:

In a straight line, the word can only be spelled on the diagonals, and there are only two diagonals in each direction that have 2 O's.

If 90° and reflex turns are allowed, then the number substantially increases.

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2nd R from the left: can go to either of two O's, one of which is the same corner O as above. So it has the same 3 paths. The center O can go to any of 4 Os that are adjacent to an M, for a total of 10 more paths. That's 13 paths from the 2nd R.

Middle R can go the three O's on the adjacent row, so can access the three paths available from each corner O along with the 10 paths available from the center O, for a total of 16 paths.

Then paths accessible from the top row of R's are 3 +10 +16 +10 +3 = 42 paths. There are two such rows of R's so a total of 84 paths.

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Thanks you to

Step-by-step explanation:

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