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meriva
3 years ago
15

John find 1/5 of the bar chocolate he bought was already eaten by his brother. He eat 3/4 of what was remaining. Find the portio

n of the chocolate that is left after john eats.
Mathematics
1 answer:
larisa86 [58]3 years ago
3 0

Answer:

1/5 is left.

Step-by-step explanation:

Portion remaining after the bar was eaten by his brother = 1 - 1/5 = 4/5.

Portion remaining after John ate 3/4 of this = 4/5 - 3/4* 4/5 = 4/5 - 3/5

=  1/5.

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Please answer a question the images.
Lyrx [107]

The distribution of the animals in the coral reef is an illustration of probability

<h3>The most likely animal</h3>

The distribution of the animals is given as:

Blue fish = 3

Yellow fish = 7

Sea turtle = 1

Eels = 3

The animal with the highest frequency is the most likely animal.

Hence, the Yellow fish is the most likely animal.

<h3>Which is more likely?</h3>

From the question, we have:

Blue fish = 3

Eels = 3

Both animals have the same frequency.

This means that Riley has equal chance of seeing a blue fish and an eel.

<h3>The probability of seeing an animal with fins</h3>

The animal with fins are:

Blue fish = 3

Yellow fish = 7

So, the probability is:

p = \frac{3 + 7}{3 + 7 + 1 + 3}

p = \frac{10}{14}

Simplify

p = \frac 57

Hence, the probability of seeing an animal with fins is 5/7

<h3>The least likely animal</h3>

The animal with the least frequency is:

Sea turtle = 1

So, the likelihood is:

p = \frac 1{14}

Hence, the sea turtle has the least likelihood of 1/14

<h3>Animals with equal likelihood</h3>

The Blue fish and the Eels have the same frequency of 3

This means that animals have equal likelihood

<h3>The probability of seeing each animal</h3>

We have:

Blue fish = 3

Yellow fish = 7

Sea turtle = 1

Eels = 3

Express as probability

Blue fish = 3/14

Yellow fish = 7/14

Sea turtle = 1/14

Eels = 3/14

Express the fractions as decimals

Blue fish = 0.214

Yellow fish = 0.500

Sea turtle = 0.071

Eels = 0.214

So, their likelihoods are:

Blue fish = Equally likely

Yellow fish = Certainly likely

Sea turtle = Unlikely

Eels = Equally likely

Read more about probabilities at:

brainly.com/question/25870256

3 0
2 years ago
The first term of a sequence is 9 and the common difference is 5. Which of the following is the fifth term of the sequence?
spayn [35]

Answer:

29

Step-by-step explanation:

9+5=14+5=19+5=24+5=29

5 0
3 years ago
Expand completely using the Binomial Theorem<br> (3y - x)^4
AleksAgata [21]

Answer:

In standard form it is x^4 - 12x^3y + 54x^2y^2 - 108x y^3 + 81y^4.

Step-by-step explanation:

(3y)^4 + 4C1(3y)^3(-x) + 4C2(3y)^2(-x)^2 + 4C3(3y)(-x)^3  + (-x)^4

= 81y^4 - 108y^3x + 54y^2x^2 - 12yx^3 + x^4

4 0
3 years ago
What is the answer to 40x=2000
umka21 [38]

Answer:

40x = 2,000

x = 50

Step-by-step explanation:

to find x of the equation 40x you first want to try different number until you get 2000 and in 40x it says you must multiply meaning 40 times a number equals 2000 and 40 times 50 equals 2,000 making x = 50

finding x:

40x - this means to multiply

40/x - this means to divide

40 - x or x - 40: this means to subtract

40 + x or x + 40: this means to add

5 0
3 years ago
What is x?
xxMikexx [17]

Answer:

x = 24

Step-by-step explanation:

MO is the angle bisector of ∠LMN, thus the following ratios are equal.

\frac{MN}{ML} = \frac{NO}{OL}, that is

\frac{12}{x} = \frac{7}{14} ( cross- multiply )

7x = 12 × 14 = 168 ( divide both sides by 4 )

x = 24

8 0
3 years ago
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