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Ahat [919]
2 years ago
6

The function f(t)=1900(1. 4)^t

Mathematics
1 answer:
kotykmax [81]2 years ago
4 0

Answer:

Increasing by 40%

Step-by-step explanation:

This is a exponentional function. The format for this type of function is a(b)^x. So "a" is your initial value, and "b" is the rate. Now let's think to ourselves what times what is still equal to the same thing? That is 1. But in our question, we have 1.4. So we are increasing by 0.4, or 40%.

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Two worded maths questions. Even if you know one answer it would help! Please also give working out if possible.
Fiesta28 [93]

Answer:

  1. 675 litres
  2. 80 mL

Step-by-step explanation:

1. The total amount of oil in the two tanks at the start is ...

  total oil = n + (n +150) + 0 = 2n+150 . . . . litres

The amount of oil in tank C at the end is 1/3 this amount, or

  oil in tank C = (total oil)/3 = (2n+150)/3 . . . . litres

The amount pumped into tank C was 500 litres, so we have ...

  (2n +150)/3 = 500

  2n +150 = 1500 . . . . . . multiply by 3

  2n = 1350 . . . . . . . . . . . subtract 150

  1350/2 = n = 675 . . . . . divide by the coefficient of n

___

2. Let x represent the amount remaining in container A. Then 4x is the amount in tank B. Before the transfer, the amount in each container was the same, so ...

  x +120 = 4x -120 . . . . . A had 120 more than remains; B had 120 less

  240 = 3x . . . . . . . . add 120-x

  240/3 = x = 80 . . . divide by the coefficient of x

The amount of liquid left in container A is 80 mL.

3 0
3 years ago
Please answer quickly thanks :)))
hammer [34]

move te dotty thing to the midle them sumbtract 5 1/2

u are very smart

7 0
3 years ago
What is 4N? I am very confused
alexdok [17]

Answer:

Step-by-step explanation:

8 0
2 years ago
Use x for your variable.<br> The product of four more than a number and nine is fifteen.
nikitadnepr [17]

Answer:2

Step-by-step explanation:

Because 15= x+4+9

7 0
3 years ago
Which number line shows the approximate location of 35?
ANEK [815]

Answer:

I need a list of numberlines or some other kind of explaination on how to solve this problem. I caint help you on this with out them. Sorry.

Step-by-step explanation:

5 0
3 years ago
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