The maximum heart rate is the highest heart rate achieved during maximal exercise. In general, you get the most benefits and reduce the risks when you exercise within your target heart rate zone. Usually this is when your exercise heart rate (pulse) is about 80 percent of your maximum heart rate. The formula M = 0.8 ( 220 − A ) M = 0.8 ( 220 - A ) , gives the recommended maximum heart rate, M M , in beats per minute, for a person who is A A years of age. Determine the age of a person whose target heart rate is 128 beats per minute. The recommended maximum heart rate is 128 beats per minute for a person who is years old.
Answers
Answer:
160 years
Step-by-step explanation:
The formula for the heart rate is given by :
M=0.8 (220−A) ...(1)
M is the maximum heart rate in beats per minute and A is the age in years
Put M = 128 beats per minute in the above formula.
128=0.8(220-A)
160=220-A
A=220-160
A = 160 years
So, the age of person is 160 years if heart rate is 128 beats per munute
Answer:
B
Step-by-step explanation:
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pleas help me ill give brainleyest
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Answer:
11.8% Decrease
Step-by-step explanation:
I googles it i am sorry if it's not right
Find an equivalent ratio in simplest terms 44:80
Answers
Answer:
11:20
Step-by-step explanation:
Divided by 4
GOD PLEASE HELP ME!!!!!!ITS DUE IN 10 MINUTES
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The price of a stock in a company drops $27 every hour. What integer represents
the change in the Stock price after 5 hours?
Answers
Answer:
2.25 and 11.25
Step-by-step explanation:
27/12=2.25 twelve is the number of hours and 27 is the total drop in price
2.25*5=11.25 because 2.25 is the drop per hour you want to multiple that by five hours.
y = x²+1 at x=1 what’s the solution?
Answers
if x = 1 then
y = 1^2 + 1 ( 1^2 = 1 )
y = 1 + 1
y = 2
evaluate 292.4 divided by 17.
THANK YOU! :)
Answers
Answer:
17.2
Step-by-step explanation:
Help me please help
Answers
Factorise fully
6x - 8
Answers
Answer:
2(3x+ 4)
I hope it helps
Pls mark as brainliest
- 8 3/4 devided by 2 1/6
Answers
Answer:
-105/26 or -4 1/26−4.03846153846 …Step-by-step explanation:
Depending on what answer
you need, the decimal is −4.03846153846,
the improper fraction is -105/26 and the mixed number is -4 1/26
Hope this helps! <3
Explain how sample size affects statistical significance.
Answers
Answer:
More formally, statistical power is the probability of finding a statistically significant result, given that there really is a difference (or effect) in the population. ... So, larger sample sizes give more reliable results with greater precision and power, but they also cost more time and money.
Can you have say from us the aks place
Answers
all drop down menus are 0-9
use drop down menus to complete each equation so the statement about its solution is true.
Answers
Answer: 5-4+7x+1 = [7]x+[not 2]
5-4+7x+1 = [not 7]x+[any number]
5-4+7x+1 = [7]x+[2]
which set of order pairs represents a function?
Answers
Answer:
3rd line
Step-by-step explanation:
two thirds a number x plus 6 is 8
Answers
2/3x+6 = 8
subtract 6 from both sides
2/3x = 2
divide both sides by 2/3
x = 3
Answer:
x = 3
Step-by-step explanation:
Multiply both sides of the equation by 3
2x + 18 = 24
Move Constant to the right-hand side and change its sign
2x = 24 - 18
Subtract the numbers
2x = 6
Divide both sides of the equation by 2
x = 3
Solution
x = 3
At a middle school, 3 out of 4 students ride a bus to school. There are 600 studenta at the school. How many students ride a bus to school
Answers
Answer:
450 students ride a bus to school.
Step-by-step explanation:
If 3 out of 4 middle school students attend class by bus, it could be stated that 75% of the students use this means of transport to get to class (3/4 = 0.75).
Therefore, if this school has a total of 600 students, and 75% of them use the bus, it could be stated that 450 students attend school using this means of transport (600 x 75/100 = 450).
Answer:
450 students
Step-by-step explanation:
1/4 = 0.25
3/4 = 0.75
600 x 0.75 = 450 students
Hope this helps!
Graph the line y=-1/3x+3
Answers
Factorise fully
63 - 9b
Please do quick! Will mark brainiest!
Answers
I believe it is 9(7-b)
6x+2=3(3x+14)
set notation
Answers
Answer:
x= -40/3
Step-by-step explanation:
How centimetres in 1 meter
Answers
Answer:
there is 100 cm in a meter
Step-by-step explanation:
Consider the following graph of an exponential function.
Answers
Answer:
A= All are real numbers
B=y>-2
c= the graph is not increasing
d= the graph is decreasing for all real numbers of x
none for both
Step-by-step explanation:
A= All are real numbers
B=y>-2
c= the graph is not increasing
d= the graph is decreasing for all real numbers of x
none for both
set of cards contains cards numbered 1 – 8. Mrs. Jacob’s class is conducting an experiment in which a card is drawn from the pile, the number is recorded, and then the card is returned to the set. The class will conduct 1,000 trials. Based on the theoretical probability, which is the best prediction for the number of times a 4 will be drawn from the pile?
111
125
143
250
Answers
Answer:
125
Step-by-step explanation:
The theoretical probability is 1/8 and (1/8)*1000=125
Answer:
b
Step-by-step explanation:
got it right
Explain the primary functions of descriptive and inferential statistics.
Answers
Answer:
Descriptive statistics uses the data to provide descriptions of the population, either through numerical calculations or graphs or tables. Inferential statistics makes inferences and predictions about a population based on a sample of data taken from the population in question.
Help, please I need it. I am horrible at math.
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A bag contains 5 blue, 3 red, 6 green, 9 orange, and 20 black marbles. What is the ratio of number of blue marbles to the number of marbles that are orange or green?
Answers
Answer:
What you are looking for is the ratio which is 5/9
Step-by-step explanation:
all you had to do was add them together
Answer:
Step-by-step explanation:
5 to 9
find 759 divided by 3
Answers
Answer:
253 .....is that it??
Step-by-step explanation:
Answer:
253!
Step-by-step explanation:
Can someone please help me I need help and I can’t understand this plsssss
Answers
1b. Subtract two from both sides, divide both sides by 13. X=3
2a. Subtract 3 from a variable; divide by 5
2a. Multiply both sides by 5,add 3 to each side. x=-2
step 1. Multiply the variable x with 13 .
step 2. Add 2 to it .
Solution (b) :Step 1 : Subtract 2 from both sides : 13x + 2 - 2 = 41 - 2 = 39
Step 2 : Divide both the sides by 13 : 13x ÷ 13 = 39 ÷ 13 = 3
x = 3
Solution (2) :Solution (a) :Step 1. Subtract 3 from the variable .
Step 2. Divide the result by 5 .
Solution (b) :[tex]Step \: 1. \: add\: 3 \: to \: both \: the \: sides : \frac{x - 3}{5} + 3 = - 1 + 3
[/tex]
Step 2 : Multiply both the sides by 5 : 5 × 1/5x = 5 × -2/5
x = -2
3g+5
(g-1)(g+6) for g = 3
answer as reduced fraction
please help omg im dying
Answers
Answer:
[tex] \frac{7}{9} [/tex]
Step-by-step explanation:
it seems like you're asking what the solution of each equation is put into a fraction
so, putting in 3 for g gives you
[tex]3(3) + 5 = 14[/tex]
which then goes over
[tex]((3) - 1 = 2)((3) + 6 = 9) = 18[/tex]
which gives
[tex] \frac{14}{18} [/tex]
however, this can be reduced to
[tex] \frac{7}{9} [/tex]
because both 14 and 18 can be divided by 2.
write an equation for the line in slope intercept form
Answers
Answer:
Y=-3x+4
Step-by-step explanation:
The slope int formula is y=m(x)+b.
The slope is rise over run (It goes up three and to the left one meaning it is a negative number).
The y intercept is 4.
Just the picture, Geometry.
Answers
∠2 = ∠3 ( vertically opposite angles )
= 112° = 112°
= ∠3 = ∠7 ( corresponding angles )
Therefore , m∠7 = 112° .
8.032×10^-4 in standard form
Answers
Answer:
0.0008032
Step-by-step explanation:
Hope this helps!
Answer:
80,320
Step-by-step explanation: