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nadya68 [22]
3 years ago
6

Jake has a bag of 50 beads, of which some are red and the remaining are yellow. Jake pulls out a bead from the bag, records the

color, and replaces it in the bag. Jake has already recorded 3 red and 12 yellow beads. Based on the result, what is most likely the number of red beads in the bag?
10
20
30
40
Mathematics
1 answer:
iren2701 [21]3 years ago
4 0
10

3 + 12 = 15 So, for every 15 beads, 3 are red. 15 * 3 = 45 So, 9 beads out of 45 are red.
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Answer:

Mason has

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Step-by-step explanation:

Let x be the number of 20¢ stamps, then the number of 3¢ stamps is  x + 9.

Mason has 56 total 49¢ and 20¢ stamps, then the number of 49¢ stamps is 56 - x.

Amounts:

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Total amount:

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Hence,

49(56-x)+20x+3(x+9)=2,355\\ \\2,744-49x+20x+3x+27=2,355\\ \\-49x+3x+20x=2,355-2,744-27\\ \\-26x=-416\\ \\26x=416\\ \\x=16

Mason has

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Sue read 129 pages. Mary read 74 pages. How many more pages did Sue read than Mary?
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sue read 55 more pages then mary

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

To find the midpoint, the formula is (x1-x2)/2 and (y1-y2)/2. So, in this case, our x1 is 4 1/2 and our x2 is -3 1/4. Subtract x2 from x1 and you will get 7 3/4. Then, divide by 2 to get 3 7/8. This is our x-coordinate.

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Now we have our x and y coordinates.

(3 7/8, 2 3/4)

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