40 mph would be 120 miles in 3 hours (120/40)
80 mph is 120 miles in 1.5 hours(120/80)
3 - 1.5 = 1.5, not 3 hrs
Change the speed to 20 mph( 1/2 the speed) to double the hours.
20 mph = 6 hours(120/20)
40 mph = 3 hrs(120/40)
6 - 3 = 3 hours difference
42/1 because it's a whole number so the denominator is a 1
Answer:
5.
4 + 2(-7 - (5 - 15))
= 4 + 2(-7 - (-10))
= 4 + 2(-7 + 10)
= 4 + 2(3)
= 4 + 6
= 10
6.
((6 - 5)^8 - 1)/(-5(-2) - 4)
= (1^8 - 1)/(10 - 4)
= (1 - 1)/6
= 0/6
= 0
7.
(14² - 8²)/(-3(8 - 3²))
= (196 - 64)/(-3(8 - 9))
= (196 - 64)/(-24 + 27)
= 132/3
= 44
Answer:
3,4
Step-by-step explanation:
3 x 4 = 12, and they are positive consecutive.
It is 800 b because 40 times 20 ( half of 40 =800
