Answer:
A. x = 10 years
B. x = 20 years
Step-by-step explanation:
Given:
y = 0.7(200 - x)
Where,
y = target heart rate in beats per minute
x = person's age in years
How old is a person with a target heart rate of 133 beats per minute?
y = 0.7(200 - x)
133 = 0.7(200 - x)
133 = 140 - 0.7x
133 - 140 = -0.7x
-7 = -07x
x = -7/-0.7
x = 10 years
B. How old is a person with a target heart rate of 126 beats per minute?
y = 0.7(200 - x)
126 = 140 - 0.7x
126 - 140 = -0.7x
-14 = -0.7x
x = -14/-0.7x
x = 20 years
Answer:
the answer is c none of the above
I hope this helps you
m=1/2
1/2 (0-x)=-2-y
-1/2x= -2-y
y=1/2x-2
Count the numbers between 0 and 5: 84
Count total numbers: 150
Percent of elderly in table:
84 / 150 = 0.56 = 56%
Count the number of Boxes that have all three numbers higher than 5: 4
total number of boxes: 50
Probability it will take at least 4 patients: 4/50 = 0.08 = 8%
Count boxes with 2 numbers 5 or under: 17
Probability: 17/50 = 0.34 = 34%
