Answer:
R, in beats per minute, can be approximated by the formulas, where a represents the person's age.
where R= 143 - 0.65a for women.... (1)
and R= 165 - 0.75a for men,..... (2)
So by implementing these two equation we get a = 40
So the age will be 40 years old
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Answer:
Equation that represents the line passing through the point -3, -1 with a slope of 4 is

Step-by-step explanation:
Equation of line in point slope form is
-------(1)
Here

Substituting values in equation (1)

Answer:
122.67 or round it to 123
Step-by-step explanation:
i used the butterfly method.
92/75 = x/100.
i multiplied 92*100=9200
then i divided it with 75.
9200/75=x
so the answer is
x=122 or 123
Answer:
A,D
Step-by-step explanation:
-6k -6 +3k -2 =-3k-8
7k +6 -10k-14 =-3k-8
Answer:
p=6
Step-by-step explanation:
2p + 7p = 54
Combine like terms
9p = 54
Divide by 9
9p/9 = 54/9
p = 6