Answer:
4.35
Step-by-step explanation:
-4.35. Step-by-step explanation: You multiply three eights times .4 which gives you .15, then you subtract that from 4.5 which gives you 4.35
Answer and explanation:
Eric's expression is and Andrea's is .
In Eric's expression, 10 represents the amount of substance he begins with. 1/2 is the amount of substance left after each time period (in this case, each week).
Andrea's expression can be written as . The one outside of parentheses represents the initial amount of the substance. The one inside of parentheses represents 100% of the original amount of the substance. 0.2 represents the 20% of the substance that is lost each time period. The variable w in this case represents the number of weeks.
Answer:
12.5
Step-by-step explanation:
Answer:
i think it =
Step-by-step explanation:
Answer:
B. 3.25 p.m.
Step-by-step explanation: