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masya89 [10]
4 years ago
11

the waist to hip ratio is a ratio commonly expressed as a decimal that has been shown to be good predictor of possible cardiovas

cular problems in both men and women. If Kevin has a WHR greater than 1, he is considered to be "high risk " for cardiovascular problems. Calculate Kevin's HER with a waist measurement of 42 inches and a hip measurement 2 inches less
Mathematics
1 answer:
Aleonysh [2.5K]4 years ago
4 0
1.047619048 is the answer
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1. A student took 60 minutes to answer a combination of 20 multiple-choice and extended-response questions. She took 2 minutes t
Darina [25.2K]

Answer:

1) m=15 and r =5

2) 4 and 2 ml

3) x= 0.5 and y = -1

Step-by-step explanation:

given that m multiple choice questions and r extended response questions.

Also given that a) m+r = total no of questions =20 ... i and

                        2m+6r = total time taken = 60  ... ii

b) Divide second equation by 2, m+3r = 30  ... iii

                                                  m+r  = 20   ... i

Subtract to get 2r =10 or r =5

m = 20-5 = 15

Verify: m+r = 15+5 =20

and     2m+6r = 30+30 = 60 minutes.  

Hence verified

--------------------------------------

2) Let a litres of 20% solution and b litres of 50% solution be mixed

a) Then total volume = 6 ml = a+b  ... i

Resulting solution = 30% of 6 ml = 1.8 = 0.2a+0.5b ... ii

b) Solve i and ii

b = 6-a: substitute in ii.

0.2a + 3-0.5a = 1.8

Or a = 4 ml and b = 2ml

Verify: Total volume = a+b =6ml and

concentration = 0.2(4)+0.5(2) = 1.8 = 30% of 6 ml.

Thus verified

---------------------------------

3) 2x-3y=4 ...i

  2x-5y =6... ii

Because x term has the same coefficient in both the equations, elimination is easier.

i-ii gives 2y =-2 or y =-1

Substitute in i, 2x+3 =4 or x = 0.5

So answer is x = 0.5 and y =1


6 0
3 years ago
In the diagram of circle O what is the measure of ABC
Olin [163]

Answer:

wheres the picture

Step-by-step explanation:

6 0
3 years ago
PLEASEEEEE ANSWER ASAP!! *picture attached* RIGHT ANSWER GETS BRAINLIST
Furkat [3]

Answer:

28,000 + (n -1)800.

Step-by-step explanation:

The first term is 28,000 and the common difference = 28,800 - 28,000 = 800 .

Each year 800 is added to the salary.

8 0
3 years ago
Translate into a mathematical expression 20% of a number​
soldier1979 [14.2K]

Answer:

.2x

Step-by-step explanation:

1. 20% is 0.2

2. Of is another word for multiplication

3. A number can be ANY NUMBER so it has to be a variable (x)

4. So .2 of x

5. putting a variable and a number right next together is a form of multiplication

6. so .2x is your answer

4 0
4 years ago
What is the slope of the line depicted in this graph? Answer must be written in simplest form.​
elena-14-01-66 [18.8K]

Answer:

\large\boxed{\bold{SLOPE}=\dfrac{1}{3}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept (0, b)</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

From the graph we have two points (0, 4) → <em>b = 4</em>, and (3, 5).

Calculate the slope:

m=\dfrac{5-4}{3-0}=\dfrac{1}{3}

If you want the equation of a line, then put the value of <em>m</em> and <em>b</em> to the equation of a line:

y=\dfrac{1}{3}x+4

8 0
3 years ago
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