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irakobra [83]
3 years ago
7

Rafael writes an expression to represent “a number, n, decreased by thirty-one.” Then he evaluates that expression if n=29. Whic

h statements are true about the expression and its evaluation? Check all that apply. a.The correct expression is 31-n. b.This is a subtraction expression. c.This is an addition expression. d.To evaluate, substitute 29 for the variable in the expression. e.To evaluate, substitute 31 for the variable in the equation. f.To evaluate the expression, add 31 to 29. g.The correct expression is . h.To evaluate the expression, subtract 31 from 29.
Mathematics
2 answers:
yulyashka [42]3 years ago
3 0
This is a subtraction expression.o evaluate, substitute 29 for the variable in the expression.to<span>evaluate the expression, subtract 31 from 29.</span>
Scorpion4ik [409]3 years ago
3 0

Answer:I believe it’s a, b, g, and h

Step-by-step explanation:

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Consider the age distribution in the United States in the year 2075 (as projected by the Census Bureau). Construct a cumulative
MrRissso [65]

Answer:

The cumulative frequency plot is also attached below.

Step-by-step explanation:

The data provided is as follows:

Age Group Frequency

   0 - 9             34.9

  10 - 19             35.7

20 - 29             36.8

30 - 39             38.1

40 - 49             37.8

50 - 59             37.8

60 - 69             34.5

70 - 79             27.2

80 - 89             18.8

90 - 99               7.7

100 - 109       1.7

Consider the Excel output attached.

The cumulative frequency are computed in the Excel sheet.

The cumulative frequency plot is also attached below.

From the cumulative frequency plot it can be seen that in the future most people will belong to a higher age group rather then the lower ones.

8 0
3 years ago
Please help?????????????????????
iren [92.7K]

Answer:

The answer is option (B)

Here is the explanation...

5 0
2 years ago
Need anyone’s help with this APEX question! Much appreciated!
VMariaS [17]

<u>Answer:</u>

The correct answer option is D. (x - 7) + 2.

<u>Step-by-step explanation:</u>

We are to determine whether which of the given options best describe the English expression:

<em>'two more than the quantity of a number minus seven'</em>

We can break this expression into smaller chunks to make it easier to translate.

1. two more than ---> +2

2. the quantity of a number ---> suppose the number to be 'x'

3. number minus 7 ---> (x - 7)

Combining these, we get (x - 7) + 2 so the correct answer option is D.

7 0
3 years ago
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Ne4ueva [31]

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