The total miles are given by multiplying the miles per week and the number of weeks:
total = 10*52 = 520
so the total miles she will jog are 520 miles
2.25 is the elevation of the plane before its decent
If I am correct, it would be dropped at -3, side adding to negative numbers make them increase to positive numbers.
12/x+5
x represents “a number” because it’s unknown and the + sign is because the words sum
4 pencils . 4/9 of an hour = 4/9 of 60 minutes = 4/9 * 60 = 80/3 minutes
x pencils = ? . one hour = 60 minutes
14 * 60 = 80/3 * x /*3
14 * 60 * 3 = 80 * x
80 * x = 2520 /80
x = 2520 / 80
x = 31.5 pencils
The result would be 32 pencils in one hour.