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Ostrovityanka [42]
3 years ago
15

3(4x+10divided by 2+3)

Mathematics
2 answers:
Elenna [48]3 years ago
5 0

Answer:

12x/5+6

Step-by-step explanation:

3(4x+10divided by 2+3)

Solve the bracket first

3((4x+10)/5)

(12x+30)/5

12x/5+30/5

12x/5+6

gulaghasi [49]3 years ago
3 0

Answer:

-2

Step-by-step explanation:

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You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed
shusha [124]

Answer:

We inject 60.9628 milliliters of dosage.

Step-by-step explanation:

Given : You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed as 500 ug/ml. The patient's chart Hosts weight as 168 pounds.

To find : How many milliliters (= cc) are you to inject?

Solution :

We know that,

1 pound = 0.453592 kg,

Patient's weight = 168  pounds

Patient's weight in kg =168\times 0.453592=76.203456  kg

The dosage is 0.4 mg per kilogram of bod.

So, dosage of patient weight = 0.4 \times 76.2035\ mg = 30.4814\ mg

We know,  1 micro gram = 0.001 mg

Concentration of drug is given by,

500\ \text{micro grams/ml}= 500\times 0.001\ \text{mg/ml} = 0.5\ \text{mg/ml}

Now we are supposed to find milliliters inject,

So, milliliters of dosage required to inject is

d= \frac{30.4814}{0.5} = 60.9628

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3 0
4 years ago
Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is
ikadub [295]

The question is incomplete, the complete question is below:

Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is the temperature in Celsius at a height of kilometers above the planet's surface. The relationship is as follows: T(h) = 30.5 -2.5h.

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Answer:

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Step-by-step explanation:

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b) T^{-1} (x)= \frac{30.5-x}{2.5}\\\\T^{-1} (15)= \frac{30.5-15}{2.5}=6.2

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What is the slope of the line perpendicular to the equation
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<span>Y=3x+2  slope = 3
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