Solve the problem.In one study the maximum heart rates of conditioned athletes were examined. A group of athletes was exercised to exhaustion. Let x represent an athlete's heart rate five seconds after stopping exercise and y represent an athlete's heart rate ten seconds after stopping exercise. It was found that the maximum heart rate H for these athletes satisfied the following two equations. H = 0.491 x + 0.468 y + 11.2 H = -0.981 x + 1.872y + 26.4If an athlete had a maximum heart rate of H = 166, determine the value of x graphically to the tenths place.
A. x = 163.2
B. x = 163.5
C. x = 162.9
D. x = 162.4
Answer: C
Mathematics
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A. 
- 6
B. -2y - 48
C. -2y - 6
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of the pizza. What fraction of the pizza is 
of a piece?
A. 
B. 
C. 
D. 
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If 
and 
, what is
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Mathematics
Translate to an equation and solve. When necessary, round to the nearest hundredth.What is 5000% of 305?
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Mathematics