Answer: 79.95 and 80.05
Step-by-step explanation: If the upper bound and lower bound is asked to a tenth then divide 0.1 by 2 and add 0.05 to 80.0 for the upper bound and minus 0.05 from 80.0 t get the lower bound.
Answer: The answer is A, 40.
2 x 2 = 4 + 4 x 4 = 16
4 + 16
= 20 + 2 x 40
20 + 80 = 100
(x = 40)
Step-by-step explanation:
a) 3km=20 minutes
times both side by 3 as 20x3 is 60mins equal 1 hour
so 3kmx3 is 9km
b) 3km is 20 mins
times both side by 6 as 20x6 is 120 mins which is equivalent to 2 hours
therefore, 3kmx6 is 18km
c) the assumption is that the longer you run means that youll jog more further so more fitness
