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frutty [35]
3 years ago
13

a localiddle school has 47 computers and 174 students. what is the number of students per computer at the school ? express your

answer as both a mixed number in simplifest form and a decimal rounded to a nearest tenth
Mathematics
1 answer:
stellarik [79]3 years ago
6 0
174/47 = 3.7 = 3 7/10
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MrMuchimi

Answer:

x = 5

y = 11

Step-by-step explanation:

y = 4x - 9

2x -3(4x - 9) = -23

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minus cancels out

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4 0
2 years ago
How many of the numbers from 10 through 92 have the sum of their digits equal to a perfect​ square?
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All the numbers in this range can be written as 10d_1+d_0 with d_1\in\{1,2,\ldots,9\} and d_2\in\{0,1,\ldots,9\}. Construct a table like so (see attached; apparently the environment for constructing tables isn't supported on this site...)

so that each entry in the table corresponds to the sum of the tens digit (row) and the ones digit (column). Now, you want to find the numbers whose digits add to perfect squares, which occurs when the sum of the digits is either of 1, 4, 9, or 16. You'll notice that this happens along some diagonals.

For each number that occupies an entire diagonal in the table, it's easy to see that that number n shows up n times in the table, so there is one instance of 1, four of 4, and nine of 9. Meanwhile, 16 shows up only twice due to the constraints of the table.

So there are 16 instances of two digit numbers between 10 and 92 whose digits add to perfect squares.

7 0
3 years ago
Complete the statements about circle j
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Step-by-step explanation:

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It would $17.47. if you times $4.99 by 3.5 pounds of cherries then your answer will be $17.47
4 0
3 years ago
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