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Pie
2 years ago
14

Three times a number plus five is less than three fourths of the number

Mathematics
2 answers:
brilliants [131]2 years ago
8 0
3x+5<3/4x
4x+20/3 < x
20/3 < -3x
x < -2.2222...

tatiyna2 years ago
3 0
The answer would be:

3x + 5 > 3/4x 
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Ipatiy [6.2K]

Answer:

the correct answer is 6561

6 0
2 years ago
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A car went 64 miles on 2 gallons of gas in the morning, 16 miles on 1/2 gallon of gas at noon, and 32 miles on 1 gallon of gas a
Marina86 [1]

Answer:

Yes,

Step-by-step explanation:

You take 64 miles for 2 gallons and divide it by 2. And it leads up to 32 miles and 1 gallon. Now you divide that by 2 again and get 16 miles and 1/2 gallon. So, to check that you can take 16+16 and you get 32 and take 32+32 and you get 64.

7 0
2 years ago
(1 point) A pond contains 100 fish, of which 40 are carp. If 20 fish are caught from the lake, what are the mean and variance of
marta [7]

Answer:

E(X) = 6

Var(X) = 3.394

Step-by-step explanation:

Let X represent the number of carp caught out of the 20 fishes caught. Now, if we are to assume that each

of the (100, 20) ways to catch the 20 fishes will be equally likely.

Thus, we can say that X fulfills a hypergeometric

distribution with parameters as follows;

n = 20, N = 100, k = 30

Formula for expected mean value in hypergeometric distribution is;

E(X) = nk/N

E(X) = (20 × 30)/100

E(X) = 6

Formula for variance is;

Var(X) = (nk/N) × [((n - 1)(k - 1)/(N-1))) + (1 - nk/N)]

Var(X) = ((20 × 30)/100) × [((20 - 1)(30 - 1)/(100 - 1)) + (1 - (20 × 30/100)]

Var(X) = 6 × 0.5657

Var(X) = 3.394

5 0
2 years ago
Find y when x=14 if y varies directly with x2 and y=72 when x=6
ICE Princess25 [194]
This should help you:


8 0
3 years ago
&gt;: If the scale factor is a 1. What happens to the shape? How can you prove this?
maria [59]
The shape would be exactly the same because any number multiplied by 1 equals itself.
3 0
2 years ago
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