Answer:
400
Step-by-step explanation:
Suppose the one's digit is x, the ten's digit is y. the original number is 10y+x, the reversed number is 10x+y
x+y=13
(10x+y)=(10y+x)-9 =>9y-9x=9 =>y-x=1
Add the two equation to solve: 2y=14 =>y=7
x=13-7=6
the original number is 76.
Answer:
0.10
Step-by-step explanation:
14 red block
9 blue blocks
10 purple blocks
25 green blocks
12 yellow blocks
18 orange blocks
----------------------------
88 total number of blocks
9 blue blocks
p(blue) = 9/88 = 0.10
The problem gives you the time in hours, but you're looking for your answer in minutes so change 1/10 of an hour to minutes first. To do this, multiply 1/10 by 60 to get 6 minutes. Since there are 4 quarters in a whole, multiply 6*4. It would take her 24 minutes to drink the whole shake
