not sure but you should use jiskha or photo math. hope this helps
Answer:1. 1.0 1.0 1.4
Step-by-step explanation:
Answer:
A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.
Answer:
[(1/12)(5/5) + (1/20)(3/3)](x hours) = 1
(5/60 + 3/60)x = 1
(8/60)x = 1 we can reduce 8/60 by dividing out a 4
(2/15)x = 1 x both sides by 15/2
x = 15/2
x = 7 1/2 or 7.5 hours
