Estimate the number of times an average person's heart beats in a lifetime. assume the average heart rate is 69 beats/min and a life span of 75 years.

65,279,520,000   i hope this helps!   :)

Step-by-step explanation:

69 * 60 = 4140   number of minutes in an hour

4140 * 24 = 99,360   number of hours in a day

99,360 * 8,760 = 870,393,600   number of hours in a year

870,393,600 * 75 = 65,279,520,000  number of years

an average of 65,279,520,000 heart beats in 75 years

asdsad

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2