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Strike441 [17]
2 years ago
11

A tank contains 1000L of brine with 10kg of dissolved salt. Pure water enters the tank at a rate of 25 L/min. The solution is ke

pt thoroughly mixed and drains from the tank at the same rate. How much salt is in the tank after t minutes?
Mathematics
2 answers:
Lilit [14]2 years ago
7 0

Answer:

its 5000kg

Step-by-step explanation:

KATRIN_1 [288]2 years ago
4 0

Answer:

(a) 5000 kilos

Step-by-step explanation:

If  is the amount of salt (in kg) after  minutes, then  and the total amount of liquid in the tank remains constant at 1000 L.

and

Because , we have

so

Since  is continuous, , and the right-hand side is never zero, we deduce that  is always positive.

Thus,  and

(b)

After one hour,

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2. The girls decide to only spend $40 between them. On average, what is the most each girl can spend? Write and solve an inequal
pochemuha

Answer:

$40 / x ; $10 / y

Step-by-step explanation:

1.)

For the question, the number of girls aren't given ;

Assume the number of girls = x

The total amount they agreed to spend between themselves = $40

Amount spent on average :

Total amout to be spent / number of girls

Amount spent on average by each girl = $40 / x

2.)

The cost of ice cream isnt given;

Assume, cost per ice cream $y

Amount to be spent on on ice-cream = $10

Number of ice creams that can be purchased :

Amount to be spent on ice-cream / cost per ice cream

$10 / y

8 0
3 years ago
How to decompose 1 1/6
bearhunter [10]

Answer:

7/6

Step-by-step explanation:

6*1=6

6+1=7

7/6

Hope this helped! :)

3 0
1 year ago
What additional information do you need to prove triangle ABC ~ triangle JKL
irga5000 [103]

Answer:

no additional information will help because the triangles are not similar

Step-by-step explanation:

Similar triangles have 3 pairs of congruent, corresponding angles.

Let's look at triangle ABC. Two angle measures are given: 51 deg and 63 deg.

180 - 51 - 63 - 66

The measure of the thrid angle is 66 deg.

One anlgle measure of triangle JKL is given. It is 66 deg.

Since <J is not congruent to any angle of triangler ABC, the triangles are not similar.

Answer: no additional information will help because the triangles are not similar

4 0
3 years ago
What ratio is equivalent to 8 to 2
Luba_88 [7]

Answer:

16 to 4

Step-by-step explanation:

8 to 2 can be reduced to 4, so to have a ratio equivalent, it must be able to be reduced to 4 also. An example would include, 16 to 4.

3 0
3 years ago
Read 2 more answers
Need Help!
gayaneshka [121]
The discounted price for milk is $3.35

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2 years ago
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