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iren [92.7K]
3 years ago
10

Y- X=4 Does Y and X show direct variation? If so find k

Mathematics
1 answer:
lesantik [10]3 years ago
3 0
X-y=-4 is the equation for question listed above, no direct variation.
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A boat rental shop rents paddle boats for a fee plus an additional cost per hour. The cost of renting different numbers of hours
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The independent variable is that whose values do not take into account the values of other variables. That is the time in hours for this item. Then, for the dependent variable, the answer would be the cost of renting. The value of the dependent variable is based on the changes done in the values of the independent variable. 
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Use the sum of cubes identity to write this polynomial expression in factored form:<br> 8x3 + 27.
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Julian walked 6/10 of a mile to his friends house and another 35/100 mile to the store. He walked 1/4 of a mile back home. Julia
AveGali [126]

The statement, "Julian's sister said he walked 1/5 mile" cannot be agreed because Julian totally walked 1\frac{1}{5} \text{ or } \frac{6}{5} miles.

<u>Solution:</u>  

Given that,

  • Julian walked 6/10 of a mile to his friends house
  • Another 35/100 mile to the store
  • He walked 1/4 of a mile back home

To find total distance walked by Julian we have to add the above stated values. That is, \frac{6}{10} +\frac{35}{100} +\frac{1}{4}

Factors of 10 = 5\times2

Factors of 100 = 5\times2\times5\times2

Factors of 4 = 2\times2

Therefore, the least common factor of 10, 100 and 4 is 100. With like denominators we can operate on just the numerators,

\frac{6\times10}{10\times10} +\frac{35\times1}{100\times1} +\frac{1\times25}{4\times1}\rightarrow\frac{60+35+25}{100}\rightarrow\frac{120}{100}

\Rightarrow\frac{120}{100}\rightarrow\frac{6}{5}

Which can also be written as 1\frac{1}{5}.

So, from the above calculation it can be said that Julian walked 1\frac{1}{5} \text{ miles }.

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3 years ago
Need some help with this question
adelina 88 [10]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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A TV has an original price of $499. Enter the new price after the given percent of change. 30% increase. ​
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Answer:

<h2>$648.70</h2>

Step-by-step explanation:

30% of 499 is 149.70

499+149.70=648.70

6 0
3 years ago
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