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dimaraw [331]
3 years ago
6

a large aquarium has 6 more fish than a small aquarium. There are 19 fish in a large aquarium. How many fish are in a small aqua

rium
Mathematics
2 answers:
Brrunno [24]3 years ago
6 0
There are 13 fish in the small aquarium.
Firlakuza [10]3 years ago
5 0
13 fish are in the small aquarium.
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If u guys answer this one ill give away free p​
yawa3891 [41]

Answer:

\frac{50}{7}

Step-by-step explanation:

Swap the fraction,

5 *\frac{10}{7} = \frac{50}{7}

or around 7.142...

3 0
3 years ago
Lengths of full-term babies in the US are Normally distributed with a mean length of 20.5 inches and a standard deviation of 0.9
mash [69]

Answer:

66.48% of full-term babies are between 19 and 21 inches long at birth

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean length of 20.5 inches and a standard deviation of 0.90 inches.

This means that \mu = 20.5, \sigma = 0.9

What percentage of full-term babies are between 19 and 21 inches long at birth?

The proportion is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 19. Then

X = 21

Z = \frac{X - \mu}{\sigma}

Z = \frac{21 - 20.5}{0.9}

Z = 0.56

Z = 0.56 has a p-value of 0.7123

X = 19

Z = \frac{X - \mu}{\sigma}

Z = \frac{19 - 20.5}{0.9}

Z = -1.67

Z = -1.67 has a p-value of 0.0475

0.7123 - 0.0475 = 0.6648

0.6648*100% = 66.48%

66.48% of full-term babies are between 19 and 21 inches long at birth

5 0
2 years ago
4x-y=10 and y=2x-2 answers
Brums [2.3K]
4x - y = 10, y = 2x - 2

4x - (2x -2) = 10

4x - 2x + 2 = 10

2x = 8

x = 4

4(4) - y = 10

-y = -6

y = 6

So x = 4 y= 6

Hope this helps!
Brainliest and a like is much appreciated!
6 0
2 years ago
Read 2 more answers
What is the diameter of this circle?​
jeka57 [31]

Answer:

The diameter of the circle is 14cm

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP WILL MARK BRAINLIST !!!!!!!!
kondaur [170]

Answer:

in my knowledge

Option A..

Step-by-step explanation:

This is an arithmetic sequence since there is a common difference between each term. ... This is the formula of an arithmetic sequence.

8 0
3 years ago
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