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Paladinen [302]
3 years ago
14

PLLLLLLLEEEEEEEEEEEEEEASE ANSWER FAST MATH GENIUSES!!!!!!!

Mathematics
2 answers:
pickupchik [31]3 years ago
8 0

Answer:

5 lbs

Step-by-step explanation:

1)  x = lbs. of coffee at $7 per lb

2)  (7)(x) + (4)(10) = (5)(x + 10)

3) 7x + 40 = 5x + 50

   7x - 5x = 50 - 40

         2x = 10

           x = 5 (lbs. of coffee at $7 per lb.)

alisha [4.7K]3 years ago
6 0

The answer to your problem is 5. Hope this helps

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4. Which of the following can be used
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The option that can be used to support the idea that the set of polynomials is closed under multiplication is; Option C: (10x^(0.5) - 8)(5x^(0.5) + 4)

<h3>What is the Closure property under multiplication?</h3>

When multiplying polynomials, the variables' exponents are added, according to the rules of exponents. It is pertinent to note that the exponents in polynomials are whole numbers. The whole numbers are closed under addition, which guarantees that the new exponents will be whole numbers. Thus, we can also say that the polynomials are closed under multiplication.

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Read more about closure property at; brainly.com/question/19340450

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1 year ago
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3 years ago
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