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8_murik_8 [283]
4 years ago
8

2/3 a−7+7/18 a−5 1/6 =? 30 points if you get in right.

Mathematics
1 answer:
Masja [62]4 years ago
7 0

The answer will be 19/18a-73/6

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Slow and steady wins the race. The leatherback sea turtle is the fastest known reptile, with a maximum speed of 21.9221.9221, po
topjm [15]

Complete question:

<em>The leatherback sea turtle is the fastest known reptile, with a maximum speed of 21.92 miles per hour (mph). </em>

<em>Which of the following equations, where d is distance in miles and t is time in hours, represents a speed that is less than that of the leatherback sea turtle? </em>

<em> </em>

<em>Select all that apply. </em>

<em>a.</em><em> d = 2.192t </em>

<em>b.</em><em> d = 20t </em>

<em>c.</em><em> d = 22t </em>

<em>d.</em><em> d = 30t</em>

<em />

Answer:

<em>a (2.192t) and b (20t)</em>

<em />

Step-by-step explanation:

Since units for distance and time are all measured in miles and hours respectively, we can simply compare the values of the options given with the leatherback turtle speed and express if the value is lower or not. We must pay special attention to the decimal separator in some cases.

<em />

<em>Leatherback sea turtle: </em><em>d = 21.92t</em>

<em>a.</em><em> d = 2.192t  </em><em>is less </em><em>than 21.92t</em>

<em>b.</em><em> d = 20t  </em><em>is less </em><em>than 21.92t</em>

<em>c.</em><em> d = 22t  </em><em>is more </em><em>than 21.92t   </em>

<em>d.</em><em> d = 30t </em><em>is more </em><em>than 21.92t</em>

7 0
3 years ago
Read 2 more answers
What is the original number if 9/10 of the number is 90?
coldgirl [10]
It would be 100. If you divide 100/10, you get 10, multiply that by 9 and you’d get 90.
6 0
3 years ago
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Between what two consecutive integers is <img src="https://tex.z-dn.net/?f=%5Csqrt182" id="TexFormula1" title="\sqrt182" alt="\s
Elden [556K]

Answer:

C. 13 and 14

Step-by-step explanation:

They notice that the square root of 182 is between 13 an 14, and it gives them the idea that the numbers 13 and 14 are the solution.

Let n be the smaller of the two consecutive integers.

   Then the other integer is  (n+1).

   We are given that  

      n*(n+1) = 182.

   Simplify

      n^2 + n - 182 = 0,

   Factor left side

      (n-13)*(n+14) = 0.

   The solutions are  n= 13  and  n= -14.

   You may check that both of them satisfy the problem' condition, giving you two answers

       the pair  (13,14)  and the pair  (-14,-13).

 

Many people prefer to solve this problem in a short way.

   They notice that the square root of 182 is between 13 an 14,

   and it gives them the idea that the numbers 13 and 14 are the solution.

   Then these people get the next idea that if the product of 13 and 14 is equal to 182,

   then the product of the opposite numbers is also 182, so

           both the pairs (13,14)  and  (-14,-13)  are solutions.

Solved and explained in detailed and short modes.

7 0
3 years ago
The expression 100 + 20m100+20m100, plus, 20, m gives the volume of water in Marcel’s pool (in liters) after Marcel spends mmm m
Nady [450]
All you have to do is you only need to evaluate the given equation which is:100 + 20m where m would be the number of minutes = 5 1/4 minutes
100 + 20 (5 1/4) 
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8 0
3 years ago
What does "sum" mean in math?
Alexxx [7]
In math the sum means to add
6 0
3 years ago
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