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Hunter-Best [27]
3 years ago
9

At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtere

d out.
Mathematics
1 answer:
snow_tiger [21]3 years ago
4 0

Answer:

thats 300 grams filtered out per hour

Step-by-step explanation:

so 4/4ths of 400 is 400 but taking 3/4ths is turning it too 100 grams

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3 years ago
Consider a sequence given by the formula f(n)=3n-1 starting with n=1. Generate the first 5 terms of the sequence
Rufina [12.5K]

Answer:

The first 5 terms are 2, 5, 8, 11, 14.

Step-by-step explanation:

  1. You use the formula to find out each term.
  2. f(n)=3n-1 starting with n=1. If n=1 that is the 1st term, if n=2 that is the 2nd term, and so on. n means what number term it is.
  3. Now to find each term:
  • n=1: f(1)= 3(1)-1= 3-1= 2 The 1st term is 2
  • n=2: f(2)= 3(2)-1= 6-1= 5 The 2nd term is 5
  • n=3: f(3)= 3(3)-1= 9-1=8 The 3rd term is 8
  • n=4: f(4)= 4(3)-1= 12-1= 11 The 4th term is 11
  • n=5: f(5)= 5(3)-1= 15-1= 14 The 5th term is 14

So the first 5 terms are 2,5,8,11,14

5 0
3 years ago
A football club won 90 of its 120 games in a season. What percentage of games were won
liberstina [14]

Answer:

75%

Step-by-step explanation:

Because if u do 90/120 u get 0.75 and divide it by 100 to get %

so the answer is 75%

Remember to give 5 stars and thank me if the answer is correct

8 0
3 years ago
The graph of linear function f passes through the point (1 -9) and has a slope of -3.
AleksandrR [38]
So think of it as division divide 3 by 2 and your anwser is what you hav
8 0
3 years ago
What is the value of x?<br> -14<br> -28<br> -48<br> -120
Ahat [919]

Answer:

x = 14

Step-by-step explanation:

This problem requires and understanding about interior sum of angles.

This is an irregular hexagon.  so Total angle sum = 180*(6 - 2) = 720 degrees.

...

80 + 56 + 61 + 43 + 92 + 2x = 360

332 + 2x = 360

2x = 360 - 332

2x = 28

x = 14

or...  6*180 -  (332 + 2x)  = 720

748 - 2x = 720...  x= 14

7 0
3 years ago
Read 2 more answers
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