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VashaNatasha [74]
3 years ago
5

Miguel is a 20 year old client at a gym. His desired training intensity is 50% of his maximum heart rate. He has a resting heart

rate of 35 bpm. Calculate Miguel's heart rate.
Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0
35 times 2= 70. The answer is 70
Usimov [2.4K]3 years ago
4 0
100 is 2 times larger than 50.
Therefore you do 35 multiplied by 2
=70
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A report by the US Geological Survey indicates that glaciers in Glacier National Park, Montana, are shrinking. Recent estimates
postnew [5]

Answer

a) C

b) B

c) C, E

d) 15.5

e) 0.7

f) 67.7

Step-by-step explanation

a) A linear equation can be written as y=mx+c where m is the slope and c is the intercept on the y-axis. The slope describes how y changes when x changes. A negative value means the it is a decreasing change. In our case, y is A and x is t. Thus, the slope of the equation is m=-0.062. This means that the area of glacier is decreasing by 0.062 \text{km}{}^2 = 62000 \text{m}{}^2 every year since 2000.

b) The A-intercept (= 16.2 \text{km}{}^2) represents the area covered when t=0. But t=0 starting from year 2000. This intercept then represents the area covered by glacier in the year 2000. Therefore, the area covered by glacier in 2000 was 16.2 \text{km}{}^2.

c) A=f(t) means the area covered after year 2000. Setting it to 12 means the area covered after t years is 12 \text{km}{}^2). t is therefore the number of years since 2000 that the total area covered will be 12 \text{km}{}^2).

d) f(12)=16.2−0.062\times12 =16.2-0.744 = =15.456 15.5 \text{km}{}^2 to 1 decimal place.

e) The term involving t represents the disappearing area. In 12 years, the disappeared area is 0.062\times12=0.744 =0.7 \text{km}{}^2 to 1 decimal place.

f) f(t)=16.2−0.062t =12

0.062t = 16.2-12 = 4.2

t = \dfrac{4.2}{0.062}=67.7419\ldots =67.7 years to 1 decimal place.

8 0
3 years ago
Solve for X. show your work. (x+2)(x+8)=0
valentinak56 [21]

Step-by-step explanation:

x = -2

x = -8

please follow me

3 0
2 years ago
What's the correct choice please help
nadezda [96]

Answer:

$77,886

Step-by-step explanation:

We solve this question by proportions, using a rule of three.

The table states that:

$201.6 in 2006 is worth $232.957 in 2013.

We want to find:

The value of $90,000 in 2013 in 2006:

$201.6 - $232.957

x - $90000

Applying cross multiplication

232957x = 201.6*90000

x = \frac{201.6*90000}{232957}

x = 77886

$77,886 is the answer

6 0
3 years ago
The weight of an object on the moon is
Alex Ar [27]
J is a fraction
Rock weighing 202 pounds on earth weighs 201j pounds on the moon.
7 0
3 years ago
One pound of grapes costs $1.55. Which equation correctly shows a pair of equivalent ratios that can be used to find the cost of
loris [4]
1:2 is the correct answer
 
5 0
3 years ago
Read 2 more answers
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