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Galina-37 [17]
3 years ago
8

HELP ASAP WILL GIVE 20 POINTSSSSS

Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

He has 52 cards

Step-by-step explanation:

52=x

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N + d = 21
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Bess has $2.80 in quarters and dimes. The number of dimes is 7 less than the number of quarters. Find the number of quarters and
Nezavi [6.7K]

Answer:

3 dimes and 10 quarters

Step-by-step explanation:

If you add 7 dimes, then the number of dimes and quarters is the same, and the total increases to $3.50. A dime and a quarter have a value together of $0.35. Since there are equal numbers, the value $3.50 must be made up of some quantity of groups with a value of $0.35. That number of groups must be ...

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_____

<em>Using an equation</em>

Let q represent the number of quarters. Then the amount Bess has is ...

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... 0.35q - 0.70 = 2.80

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4 0
3 years ago
What is the value of x in the equation 4x + 8y=40 when y=0.8
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Hope this helps :)
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Step-by-step explanation:

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