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borishaifa [10]

3 years ago

13

PLEASE HELP!!!! Jina has d decks of cards. Each deck has 52 cards in it. Using d, write an expression for the total number of ca

rds Jina has.

1 answer:

Bogdan [553]3 years ago

8 0

Answer:52d

Step-by-step explanation:For example, Jina has three decks. 52 times 3 equal how much cards she has.

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Solve the following system: <br> 3x + 2y = 7 <br> -4.5x - 3y = -10.5

valentina_108 [34]

Answer:

<u>infinitely many solutions</u>

Step-by-step explanation:

The system of equations :

3x + 2y = 7
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Multiplying Equation 1 times 3 and Equation 2 times 2 :

9x + 6y = 21
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Putting the equations in standard form after simplifying :

6y = -9x + 21 ⇒ <u>y = -1.5x + 3.5</u>
-6y = 9x - 21 ⇒ <u>y = -1.5x + 3.5</u>

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As both equations are the same, the system will have <u>infinitely many solutions</u>.

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