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aliya0001 [1]
4 years ago
9

A large mixing tank initially contains 1000 gallons of water in which 40 pounds of salt have been dissolved. Another brine solut

ion is pumped into the tank at the rate of 5 gallons per minute, and the resulting mixture is pumped out at the same rate. The concentration of the incoming brine solution is 3 pounds of salt per gallon. If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is Select the correct answer
Mathematics
1 answer:
Inga [223]4 years ago
3 0

Answer:

c the answer is c

Step-by-step explanation:

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when derek planted a tree it was 36 inches tall. the tree grew 1 1/4 inches per year the tree is now 44 3/4 inches tall. how man
mafiozo [28]
Derek would have planted the tree 7 years ago. You subtract 36 from 44.75 and get 8.75. This is how much the tree grew since he planted it. Then, you'll divide 8.75 by 1.25 (1 1/4) which tells you how many years it has been since he planted the tree. The final answer is 7 years. Hope this helps!
8 0
4 years ago
Everyone at Jaylen's school wore either brown or blue for school spirit day. 90 students wore brown and 10 students wore blue. W
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Answer:

90%

Step-by-step explanation:

90 + 10 is 100 total

90/100 is just 90%

6 0
3 years ago
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Because if you add the 20 6 and 6 it gives you 32 hope this helps

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You roll a die 60 times how many times do you expect to roll a factor of 12
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Answer:

Just for fun, the probability of rolling a die 60 times and getting no ones is

(600)(5/6)60=0.0018% .

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This 10 ones is the value with the highest probability of occurring. It has a probability of  (6010)(1/6)10∗(5/6)50≈13.7% .

8 0
2 years ago
To which real number subset(s) do the following real numbers belong?
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C. Integers and Rational Numbers.
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