Alexandra has $15 to buy drinks for her friends at the baseball game. Soda costs $2.75 and bottled water costs $2.00. This relat
ionship can be represented by the inequality 2.75s+2w
1 answer:
Answer:
Step-by-step explanation:
Let
s-------> the number of sodas
w-----> the number of bottled water
we know that
The inequality that represent the situation is equal to
using a graphing tool
The solution is triangular shaded area
see the attached figure
The domain (number of sodas) is all positive whole numbers belong to the interval [0,1,2,3,4,5]
The range (number of bottled water) is all positive whole numbers belong to the interval [0,1,2,3,4,5,6,7]
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Answer:
Answer:
About 5043.58
Step-by-step explanation:
The standard form for an exponential decay after t time is:
Where a is the initial value, r is the rate decay, t is the time that has passed, and d is the amount of time it takes for 1 cycle.
The initial value is 9800. So a = 9800.
The quantity cuts in half. So, r = 1/2.
And it cuts in half every 6 days. For this question, we will convert this to hours. 6 days = 144 hours. So, we can let d = 144, where t will be in hours.
Therefore, our function is:
Where t is the amount of time that has passed, in hours.
Then the quantity left after 138 hours will be: