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4 years ago

1. Part A: Solve the inequality. Show work for full credit. 2x+3<7

Mathematics

2 answers:

LiRa [457]4 years ago

7 0

Answer:

x<2

Step-by-step explanation:

2x+3<7

Subtract 3 from both sides:

2x<4

Divide both sides by 2:

x<2

Harman [31]4 years ago

5 0

Answer:

x < 2

Step-by-step explanation:

If 2x + 3 is less than 7, then 2x alone must be less than 4.

2x + 3 < 7

2x < 4

If 2x is less than 4, then x must be less than 2.

2x < 4

x < 2

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Sergeeva-Olga [200]

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Step-by-step explanation:

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3 years ago

The 18 faculty members in a college math department range in age from 32 to 68. A stem plot follows: The first and third quartil

valentina_108 [34]

Answer:

$Q_{1}=39, \:and\: Q_{3}=58$

Step-by-step explanation:

1) This Stem and Leaf plot works like a Histogram. Completing the question, check below the Stem plot. Look the data out of the Stem plot and within (in the graph below)

32, 34 , 38 , 39 , 39 , 40 , 43 , 45 , 46 , 49 , 53 , 54 , 57 , 58 , 59 , 59 , 63 , 68

2) Notice how the first digit is on the Stem column (check below)

3) To find the first and Third Quartiles

Let's use the formulas to find the position, then the value. As it follows:

$Q_3=\frac{3}{4}(n+1) \Rightarrow Q_3=\frac{3}{4}(18+1) Q_3=14.25 \approx14th =58$