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Leokris [45]
3 years ago
6

Peanuts sell for $3 per pound. Cashews sell for $6 per pound. How many pounds of cashews should be mixed with 12 pounds of peanu

ts to obtain a mixture that has a value of $4.20 per pound?
Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

Answer:

84

Step-by-step explanation:

12*3+6x=4.20(12+x)

36+6x=50.4+4.2x

6x-4.2x=50.4-36

1.8x=14.4

x=14.4/1.8

x=8 pounds of cashews is used.

Proof:

12*3+6*8=4.2(12+8)

36+48=4.2*20

84=84

(not mine)

from algebra.com

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Dmitriy789 [7]

Answer:

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Step-by-step explanation:

Let the number of tadpoles caught by Joseph be x

The number of tadpoles Wendy caught will be ;

9(x + 3)

After Joseph was upset, he released half of Wendy’s tadpole and then six times as many as Joseph caught swam away leaving Wendy with only three tadpoles left;

Hence, mathematically;

9(x + 3)/2 - 6x = 3

Multiply through be 2

9(x + 3) - 12x = 6

9x + 27 -12x = 6

9x -12x = 6-27

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6 0
4 years ago
Adam is 2 years old. His sister lina is 1 year less than 3 times his age.write a numerical expression for linas age
Andre45 [30]

Answer:

Step-by-step explanation:

Let's take it part by part.

" lina is 1 year less than..."  So this means a value that we get some other way -1.  So let's call it x-1 for now.  The next part tells us how to get x.

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3 0
3 years ago
4636•968-23+325•5 solve the problem
9966 [12]
Basically, follow the order of operations, Multiplication comes before adding and subtracting.

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3 0
3 years ago
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Adrian works ata carwash and makes $12 an hour. How many hours dothey have to work to save atleast $1200 over the summer?
Mashcka [7]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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Since there are a total of 6 possible outcomes when rolling a die (1,2,3,4,5,6) which rolling a 5 is only one of the options. Meaning that the probability of rolling a 5 is 1/5.

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3 years ago
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