41 years ago, when Sally was 13 and her mother was 39.
Step-by-step explanation: I've heard this question b4
Answer:
If the positions are distinct, as in executive offices, then P(9,5)
P(9,5) = 9!/(9 - 5)! = 15120..... is the answer
But...
If the positions are equivalent, such as seats in a legislative body, then C(9,5)
C(9,5) = 9!/[(9 - 5)!(5!)] = 126
Hope this can help you :)
Answer: In 1 hour , it will waste = 1.25ml
Step-by-step explanation:
Volume of water wasted by the tap in 9 Hours = 11,250 ml
Since it drips in equal quantity,
In 1 hr , it will drip= 1 x 11,250 / 9 = 1,250 ml
But 1000 ml = 1 Liter
1250 ml = 1250ml x 1Liter / 1000ml= 1.25L
Answer:
14x
Step-by-step explanation:
you add 2x+8x to make 10x then add the 4x
19.2 is the answer because if you move the decimal over until its a whole then just divide
