Answer:
Day 21: 810 m
Day 60: 1,200 m
Step-by-step explanation:
The amount of meters she walk everyday can be modeled as a linear function, as the rate of variation is a constant (10 m/day):
This constant (10 m/day) is the slope of the linear function.
We know one point of the linear function (D(20)=800) and the slope, so we can calculate the y-intercept:
Now, we can calculate the distance she walks by day 21 and day 60:
Y-y(1) = m(x - x(1))
y - 1 = (-3/4)(x + 8)
Answer:
Hailey won by holding her breath for 102 seconds
Step-by-step explanation:
Britney held her breath for 44 seconds
Carla held her breath for 88 seconds
Hailey held her breath for 102 seconds
Number of people who have heard it
by the end of the day:
January 1 . . . . . 2
January 2 . . . . . 4
January 3 . . . . . 8
January 4 . . . . . 16
January 5 . . . . . 32
January 6 . . . . . 64
January 7 . . . . . 128
January 8 . . . . . 256
.
.
.
February 1 . . . . . 4,294,967,296
February 2 . . . . . 8,589,934,592 <=== more than the Earth's
human population.
