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atroni [7]
3 years ago
9

Solve: 2x-3= 5(x+ 6) OA. x= -9 OB. x=-11 OC. x=-3 OD. x- 33

Mathematics
2 answers:
alexgriva [62]3 years ago
8 0

Answer: the correct answer is b x=11

Step-by-step explanation:

2x - 3x + 3x = 5x + 30 + 3

2x = 5x + 33

( 2x - 5x = 5x +  33 - 5x

(1/3)-3x = 33x (1/3)  Here we divide it but since it is 1/3, it is the same as dividing 3 divided by 11

1x = 11

x=11

deff fn [24]3 years ago
3 0

Answer:

x = -11

Step-by-step explanation:

2x-3 = 5x+30

2x = 5x+33

2x - 5x = 33

-3x = 33

33÷(-3)

x = -11

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The equations x+5x=16
and x+5x+25=16
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3 years ago
The HCP prescribes methotrexate 7.5 mg PO weekly, in 3 divides doses for a child with rheumatoid arthritis whose body surface ar
dexar [7]

Answer:

1.5mg

Step-by-step explanation:

From the question, we are told that the HCP prescribed 7.5 mg of PO weekly

The therapeutic dosage is given in the question as 5 - 15 mg/m² weekly.

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The mg of PO that the nurse should administer in each of the three doses given weekly is calculated as

7.5mg/ 5mg/m²

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4 0
3 years ago
In response to a gss question in 2006 about the number of hours spent per day watching television, the responses by the fifteen
NemiM [27]

Answer:

Standard error = 0.4

Step-by-step explanation:

Step 1

We find the Standard Deviation

The formula = √(x - mean)/n - 1

n = 15

Mean = 1.93 hours

= √(0- 1.93)² + (0-1.93)² +(0- 1.93)²+( 0- 1.93)²+ (1- 1.93)² + (1- 1.93)² +(1 - 1.93)² +(2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + ( 2 - 1.93)² +(4 - 1.93)² +(4 - 1.93)² + (5 - 1.93)²/15 - 1

= √(3.737777776 + 3.737777776 + 3.737777776 + 0.871111111 +0.871111111 + 0.871111111 + 0.004444444445+ 0.004444444445 + 0.004444444445 + 0.004444444445 + 0.004444444445 + 1.137777778 + 4.271111112 + 4.271111112 + 9.404444446)/15 - 1

= √2.352380952

= 1.533747356

Step 2

We find the standard error

The formula = Standard Deviation/√n

Standard deviation = 1.533747356

n = 15

= 1.533747356/√15

= 1.533747356 /3.87298334621

= 0.39601186447

Approximately = 0.4

Therefore, the standard error is 0.4

4 0
3 years ago
lily swims a 100-meter race. she swims the first half in 27.8 seconds. she swims the second half in 30.12 seconds. how long does
Luden [163]

we know that

1) Lily swims a 100-meter race

2) She swims the first half in 27.8 seconds

3) She swims the second half in 30.12 seconds

so

To find the total time to swim the whole race sum the time in the first half plus the time in second half

(27.8+30.12)=57.92\ seconds

therefore

<u>the answer is</u>

57.92\ seconds

3 0
3 years ago
Read 2 more answers
What is the slope of the line y = 5x? Just write the<br> number for your answer.
vitfil [10]

Answer:

5

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

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Step-by-step explanation:

<u>Step 1: Define</u>

y = 5x

<u>Step 2: Break Function</u>

<em>Identify Parts</em>

Slope <em>m</em> = 5

y-intercept <em>b</em> = 0

5 0
3 years ago
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