What's 1.21 divided by 1.1

1 answer:

3 0

Recall that a number with a comma could be written as a fraction as follows: If the number has a certain amount of decimals, you write the fraction as the same number without the comma, divided by 1 followed by as many zeros as decimal

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Kevin and Randy Muise have a jar containing 80 coins, all of which are either quarters or nickels. The total value of the coins

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Answer:

39 quarters and 41 nickels

Step-by-step explanation:

Let the number of quarters be x and nickels be y.

Given:

Quarter is 25 cents
Nickel is 5 cents
Number of coins is 80
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We have equations:

x + y = 80
25x + 5y = 1180

Solve the system by elimination, subtract 5 times the first equation from the second one:

25x + 5y - 5x - 5y = 1180 - 80*5
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x = 39

Find the value of y:

39 + y = 80
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Step-by-step explanation:

Assuming that all 54 shelves hold the same number of books its just a matter of dividing them (or sharing them equally) on each shelf.

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Step-by-step explanation:

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