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Vlad1618 [11]
3 years ago
15

You are playing a game in which a single dice is rolled if less than 3 is rolled than you win $1 if more than a 3 is rolled you

pay $1 if a 3 is rolled nothing happens is the game fair
Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0
Yes the game is fair because the game requies a number lower than 3 and 3 is even on a single rolled dice beacuse a singled rolled dice stoppes at 6.
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Mary wants to make 20 gallons of a 52% acid solution by mixing together a 84% acid solution and a 4% acid solution. How much of
Setler [38]

Answer:

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Step-by-step explanation:

I like to use an "X-diagram" to solve mixture problems. On the left side are the constituents of the mix; in the middle is the result of the mix; and on the right side are the differences between the numbers on each diagonal. These differences are the ratio numbers for the mix.

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Mary must use ...

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You may note that this solution takes much longer to explain than to do. The math here can all be done without a calculator.

_____

<em>Check</em>

12 × 84% + 8 × 4% = 10.40 = 20 × 52%

_____

<em>Usual Solution</em>

A more conventional approach would be to assign x to the amount of 84% solution needed. Then the number of gallons of acid in the mix is ...

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  20-x = 8 . . . . . . . . . . gallons of 4% acid

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