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Leona [35]
3 years ago
8

It takes Maya 30 minutes to solve 5 logic puzzles ,and it takes Amy 28 minutes to solve logic puzzles use models to show the rat

e at which each student solves the puzzle ,in minutes per puzzle ? Explain
Mathematics
2 answers:
Alla [95]3 years ago
8 0

Answer:

Maya solve puzzle in 6 minutes per puzzle and Amy solves the puzzle in 7 minutes per puzzle.

Step-by-step explanation:

Given:

For Maya 5 puzzles = 30 minutes

For Amy 4 puzzles = 28 minutes

We need to find the rate at which student solve the puzzle in minutes per puzzle.

Solution:

First we will find the rate of Maya.

5 puzzles = 30 minutes

1 puzzle = Number of minutes for 1 puzzle

By Using Unitary method we get;

Number of minutes for 1 puzzle = \frac{30}{5}=6\ mins

Hence Maya requires 6 minutes for 1 puzzle.

Now we will find the rate of Amy.

4 puzzles = 28 minutes

1 puzzle = Number of minutes for 1 puzzle

By Using Unitary method we get;

Number of minutes for 1 puzzle = \frac{28}{4}=7\ mins

Hence Maya requires 7 minutes for 1 puzzle.

Hence We can say that Maya solve puzzle in 6 minutes per puzzle and Amy solves the puzzle in 7 minutes per puzzle.

Trava [24]3 years ago
5 0

It takes Maya 30 minutes to solve 5 logic puzzles and it takes Amy 28 minutes to solve 4 logic puzzles use models to show the rate at which each student solves the puzzles in minutes per puzzle

Answer:

Maya's rate to solve the puzzle = 6 min/puzzle

Ame's rate to solve the puzzle = 7 min/puzzle

Step-by-step explanation:

Let x be the rate of the each student to solve the puzzle.

Given:

Maya takes time to solve 5 logic puzzles = 30 min

Ame takes time to solve 4 logic puzzles = 28 min

We need to find the rate of each student to solve the puzzle.

Solution:

For Maya:

Maya takes 30 minutes to solve 5 logic puzzles.

Suppose Maya solves x puzzles in one minute.

As per given statement Maya solves (5x) puzzles in 30 minutes, So we may write the equation as:

5x = 30

x = \frac{30}{5}

x = 6\ min/puzzle

Therefore, Maya solves each puzzles in 6 minutes.

For Ame:

Ame takes 28 minutes to solve 4 logic puzzles.

Suppose Ame solve x puzzles in one minute.

As per given statement Ame solve (4x) puzzles in 28 minutes, So we may write the equation as:

4x = 28

x = \frac{28}{4}

x = 7\ min/puzzle

Therefore, Ame solves each puzzles in 7 minutes.

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a^b \cdot a^c = a^{(b+c)}


Essentially, we add the exponents.


Using the information above, we can find our answer:

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Answer:

a)

90% confidence interval for the mean grading time of all composition papers.

(12.47981 , 13.52019)

b)

Appropriate inequality

The interval is  ( 12.47981 < μ < 13.52019)

Step-by-step explanation:

<u><em>Explanation</em></u>:-

a)

Given sample size 'n' = 40

Mean of the sample = 13 minutes

standard deviation = 2 min

level of significance = 0.10 or 90%

90% confidence interval for the mean grading time of all composition papers.

( x^{-} - Z_{0.1} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.10} \frac{S.D}{\sqrt{n} } )

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( 13 - 0.52019 , 13 + 0.52019)

(12.47981 , 13.52019)

b)

The interval is  ( 12.47981 < μ < 13.52019)

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Alex makes 60% of the shots he takes in basketball. What is the probability that Alex
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Answer:60/100

Step-by-step explanation:

60/100 idk

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Answer:

The answer is True.   Hope this helps. :)

Step-by-step explanation:

( 4 x 3 ) 3 + 5 - 10 = 4 x 3 + 5 - 10

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This is basically an example of PEMDAS.

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