Mental math and associative property of addition
i look at 173 and 427 and see that
73+27=100
i add now the 100(from 173)+400(from 427)+100(see above)=600
easy
600+301=901
(a)
(b)
(c)
Solution:
To write each of the given expression in the form :
(a)
Using exponential rule:
(b)
Divide numerator and denominator by the common factor 2, we get
Using exponential rule:
(c)
Divide numerator and denominator by the common factor 7, we get
Using exponential rule:
The answer would be 0.5 miles per hour. This is because to get from feet per hour to Miles per hour, you need to divide by 5280. (1 mile = 5,280 feet.)
5 pieces of wood because if you put 1 9/16 as an improper fraction you get 25/16 then you do 25/5 and get 5 pieces of wood