The best estimate of the sum of the expression given is ![\rm 13 \dfrac {31}{26}](https://tex.z-dn.net/?f=%5Crm%2013%20%5Cdfrac%20%7B31%7D%7B26%7D)
What is a Fraction ?
A fraction is written as p/q , where q
0
It is asked to determine the sum of the fraction
31/4 + 17/3 + 8/18
Taking the LCM of 4 , 3 , 18
LCM of 4 , 3 ,18 is 36
Therefore
![\rm \dfrac{ 31 *9 + 17 *12 + 8 *2}{36 }](https://tex.z-dn.net/?f=%5Crm%20%5Cdfrac%7B%2031%20%2A9%20%2B%2017%20%2A12%20%2B%208%20%2A2%7D%7B36%20%7D)
(279+204+16) /36
499 / 36
![\rm 13 \dfrac {31}{26}](https://tex.z-dn.net/?f=%5Crm%2013%20%5Cdfrac%20%7B31%7D%7B26%7D)
Therefore the best estimate of the sum of the expression given is
.
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Answer:
Infinitely Many Solutions
Step-by-step explanation:
Given
![\left[\begin{array}{cccccc}1&2&3&4&5&6\\7&6&5&4&3&2\\8&8&8&8&8&8\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccccc%7D1%262%263%264%265%266%5C%5C7%266%265%264%263%262%5C%5C8%268%268%268%268%268%5Cend%7Barray%7D%5Cright%5D)
Required
Determine the type of solution
From the matrix, we have:
3 non-zero rows and 5 variables (the last column is the result)
When the number of variables is more than the number of non-zero rows, then such system has infinitely many solutions
i.e.
![Variables > Non\ zero\ rows](https://tex.z-dn.net/?f=Variables%20%3E%20Non%5C%20zero%5C%20rows)
![5 > 3](https://tex.z-dn.net/?f=5%20%3E%203)
70-40= 30
30/2 = 15
40/2= 20
15 x 20 = 300
Answer:
−11y, −4z, w, 8x
Step-by-step explanation:
After exchanging his Canadian dollar to U.S dollar, Greg only has 4/5 of 200 which is equal to 160 U.S dollars. He had spent 3/4 of the U.S dollars he has, which means that he had spent 3/4 of 160 or equal to 120 U.S dollars. He is then left with only 40 U.S. dollars.