She poured 1 full cup and 2/3 of another cup. The answer would be 1 and 2/3 cups.
5/3= 1 and 2/3
Answer: 5h+4=A
Step-by-step explanation:
She gets five dollars an hour so for one hour she gets five dollars, for two hours she gets 2 times 5 dollars (10 dollars), for three hours she gets 3 times 5 dollars (15 dollars) etc...
Now replace the 1,2,3... with the variable representing the hour. In this case it would be h. So 5h=five dollars per hour. Because you only put the kid to bed once, you add four at the end
False: it is a rational number
Answer:
-35
Step-by-step explanation:
:D
Answer:
It will take 25.6 years for the mass of the sample to reach 400 grams.
Step-by-step explanation:
Element X is a radioactive isotope such that every 25 years, its mass decreases by half.
This means that the amount of the substance after t years can be modeled by a function in the following format:
In which A(0) is the initial amount.
Initial mass of a sample of Element X is 910 grams.
This means that
So
How long would it be until the mass of the sample reached 400 grams?
This is t for which
So
It will take 25.6 years for the mass of the sample to reach 400 grams.