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3 years ago

Hey guys, i have a really big problem with solving these types of questions. Could you tell me how to solve this? Brainliest!

Mathematics

1 answer:

Monica [59]3 years ago

7 0

Answer:60

Step-by-step explanation:

1.5 x + 2.5x = 240

4x = 240

x = 240/4

x = 60

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A patient A receives 3 times the amount of certain medicine as patient B the 2 doses add to 200 milligrams. What amount does eac

torisob [31]

Patient A=150

Patient B=50

hope it helped :)

4 0

2 years ago

A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

nika2105 [10]

Answer:

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{73.5}{12.54}=0.17061$

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

Step-by-step explanation:

The coefficient of variation is defined as the percentage relative variation of a set of data with respect to its average. And it is calculated like this:

$CV=\frac{\bar X}{S}$

$S =\sqrt{\frac{1}{n-1} \sum_{i=1}^n (x_i-\bar{x})^2$

$\bar X={\frac{1}{n} \sum_{i=1}^n x_i$

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{12.54}{73.5}=0.17061$

It is observed that the systolic pressure shows greater standard deviation but less coefficient of variation. This is due to the greater magnitude of its measurement scale.

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

7 0

2 years ago

A speed walker covered 4 1/2 mi in 3/4 hour. How far will he walk in 3/4 hour if he walks

Pavel [41]

Answer:

A=27/4 B=2.25

Step-by-step explanation:

4 and 1/2 also equals 18/4.

18/4+1/2(18/4)=18/4+9/4

18+9=27

Answer is 27/4

B)=4.5/2=2.25

4 0

2 years ago

Please solve 1,2,3,4,5,6,13,14,18 and 21

Volgvan

O.o that so hard but my big sister know how to do it

5 0

3 years ago

Read 2 more answers

Multiply.

horrorfan [7]

Answer:

The answer is 6

Step-by-step explanation:

What you do is this.

3/9 times 18/1 because you need to make 18 a fraction and then multiply. And you will get 6

8 0

2 years ago