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dedylja [7]
3 years ago
7

Which pair of expressions is not equivalent? A 3(2a + 5) and 6a + 15 B. 4x – 7 + 5x + 5 and 9x + 12 0. C. 80 - 6) and 8j – 48 D.

9b + 4 + 3b - 9 and 12b - 5​
Mathematics
1 answer:
Sergio039 [100]3 years ago
5 0

Answer:

The correct answer is B.) (4x - 7 + 5x + 5) and (9x + 12).

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frutty [35]
24) All percents are numbers with the decimal moved 2 to the right. So if you have 275%, move the decimal to the left twice to get a factor of 2.75. that means that the puppy is 2.75 times heavier at 4 months than it was at 2 months. Since you need the answer as a mixed fraction, your answer is;
2.75=2+\frac{3}{4}=2~\frac{3}{4}

28) If 6 of 75 trees are 30+ feet tall and you need to know how many are under, subtract 6 from 75 to get (75 - 6) = 69 trees under 30ft tall.
You're looking for the percent of trees under 30ft tall, so divide the number of trees <30ft by the total number of trees to get;
\frac{69}{75}= .92
Move the decimal 2 to the right to get 92%.
Your answer is that 92% of trees is under 30ft.
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Marisol has 5 times as many books as jerry. Jerry has 15 books. How many more books does marisol have
ICE Princess25 [194]

Answer:

5 times more books

Step-by-step explanation:

In total Marisol has 75 books.  She has 5 times as many books and Jerry has 15.  5*15=75

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The amount of apples is the Xs and The cost is the Ys

Step-by-step explanation:

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The sum of 3 consecutive even numbers is 66. write an equation and solve to find the smallest even number.
Alekssandra [29.7K]
X+(x+2)+(x+4)= 66
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20,22, and 24. so 20 is the answer
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