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Maru [420]
4 years ago
7

In the 1996 summer Olympic Michael Johnson set a world record in the 200 meter run with a time of 19.32 seconds this broke his r

ecord in the 1996 olympics trails of the 19.66 seconds how much faster was Johnson in the actual Olympics
Mathematics
1 answer:
Gemiola [76]4 years ago
3 0
He was .28 seconds faster
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the average cost of gas per gallon last year was $2.649. This year, the average cost of gas per gallon is $2.999. Find the perce
DIA [1.3K]
2.649 this year 2.999 per gallon
6 0
3 years ago
Helppppppppppppppppp
valina [46]
This is a simple "solve for x" equation.
5k-2k=12
3k=12
k=4
You should try doing some more on your own, as this will be coming up a lot in the future.
5 0
3 years ago
Heidi looks at the donkeys and
Georgia [21]

Answer:

7 donkeys

Step-by-step explanation:

Given

A system consisting of donkeys and tourists

Heads = 50

Legs = 114

Required

Calculate number of donkeys.

Represent donkeys with D and tourists with T.

By means of identification; donkeys and tourists (human) both have 1 head.

This implies that

Number of Heads = D + T

50 = D + T ----- Equation 1

While each donkey have 4 legs, each tourists have 2 legs.

This implies that

Number of legs = 4D + 2T

114 = 4D + 2T ---- Multiply both sides by ½

114 * ½ = (4D + 2T) * ½

57 = 4D * ½ + 2T * ½

57 = 2D + T ----- Equation 2

Subtract equation 1 from 2

57 = 2D + T

- (50 = D + T)

---------------------

57 - 50 = 2D - D + T - T

7 = D

Recall that D represents the number of donkeys.

So, D = 7 implies that

The total number of donkeys are 7

6 0
3 years ago
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
Which expressions are equivalent when m=1 and m=4? (picture attached)
Neporo4naja [7]
The second one is the only equivalent equation. Simply plug in each variable in each equation. And compare!
4 0
3 years ago
Read 2 more answers
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