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nadezda [96]
2 years ago
3

A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin

? (Hint: Solve for X).
Mathematics
2 answers:
fgiga [73]2 years ago
8 0
All you have to do is find 3/5 of 2000.  Divide 2000 by 5 to get 400. Multiply 400 by 3 to get 1200 and 3/5 of 2000.

So 1200 doctors use brand X aspirin.
Alecsey [184]2 years ago
7 0

If 3 out of 5 doctors use brand X aspirin, it means \frac{3}{5}=0.6=60% of doctors use brand X aspirin.

<em>So, what is 60% of 2000?</em>

<em>(0.6)(2000)=1200</em>

Hence, 1200 doctors (out of 2000) uses brand X aspirin.


ANSWER: 1200 doctors

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The data represents the body mass index​ (BMI) values for 20 females. Construct a frequency distribution beginning with a lower
Papessa [141]

Answer:

Given:

Body mass index values:

17.7

29.4

19.2

27.5

33.5

25.6

22.1

44.9

26.5

18.3

22.4

32.4

24.9

28.6

37.7

26.1

21.8

21.2

30.7

21.4

Constructing a frequency distribution beginning with a lower class limit of 15.0 and use a class width of 6.0.

we have:

Body Mass Index____ Frequency

15.0 - 20.9__________3( values of 17.7, 18.3, & 19.2 are within this range)

21.0 to 26.9__________8 values are within this range)

27.0 - 32.9____________ 5 values

33.0 - 38.9____________ 2 values

39.0 - 44.9 _____________2 values

The frequency distribution is not a normal distribution. Here, although the frequencies start from the lowest,  increases afterwards and then a decrease is recorded again, it is not normally distributed because it is not symmetric.

3 0
2 years ago
7. During the Middle Ages, people often used grains, scruples, and drahms to measure the weights of different medicines. If 120
Serjik [45]

Answer:

5 drahms.

Step-by-step explanation:

From the question given above, the following data were obtained:

120 grains = 6 scruples

6 scruples = 2 drahms

300 grains (in drahms) =..?

From the above data,

120 grains = 6 scruples

6 scruples = 2 drahms

Therefore,

120 grains = 2 drahms

Thus, we can obtain 300 grains in drahms as follow:

120 grains = 2 drahms

Therefore,

300 grains = 300 grains × 2 drahms /120 grains

300 grains = (300 × 2)/120 drahms

300 grains = 5 drahms

Therefore, 300 grains is equivalent to 5 drahms.

5 0
2 years ago
The triangles are congruent by the SSS congruence theorem. Which rigid transformation(s) can map MNP onto TSR? Reflection only r
ElenaW [278]

Answer:

the answer here is C) translation, then reflection

Step-by-step explanation:

if you translate point P to point R and then translate across that point they map onto each other


7 0
2 years ago
Read 2 more answers
With a beginning balance of $2500 and no additional charges, there is no grace-period, you will just pay the minimum payment eac
valkas [14]

Answer:

a = $31.23 per month

b = $20.83 per month

c = 249.98 = $249.98 interest charges

                   = $624-249.98 = 374.02 profit part decrease 8% inc.                  

d = 35.35%

e = Answer is in the name; basic payment is a contract which means whilst account remains open charges are requested without fail. Should balance be less or on zero, charges are still applied.

Step-by-step explanation:

2500 x 1.2499 = interest only for start month 13 =3124.75

3124.75/ 100 x 1.08   = 8% of this = 249.98 each year.

We only have to divide each by 12 to work out monthly individual charges and subtract to find out payments.

3124.75 - 249.98 = 2874.77 = Total after charges each year.

249.98/12 = 20.83 = monthly charges.

3124.75- 2500 = 624.75 payments each year

624.75/12 = 52.06 month 1 payment before charge

52.06-20.83 =31.23 total minimum payment

2500 + 249.98

Percentage = 200:600 = 1/3 33% + (comparing to ratio 10:25 closer to 40%)

We find ratio 200:600= 33.33 + 49.995/24.75 = 2.02

33+2.02 = 35.35%

7 0
2 years ago
All of the following are equivalent except _____. A:5 over 4. B:1.25. C:12.5%. D:125%.
earnstyle [38]
Hello, there!

5/4 = 1.25

So, we know that the answer is not A or B.


1.25 = 125% 

Now, we know that the answer is not D ether.

So, the answer must be C.


I hope I helped!

Let me know if you need anything else!

~ Zoe


3 0
2 years ago
Read 2 more answers
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