If <em>x</em> = 745/999, then
999<em>x</em> = 745
1000<em>x</em> - <em>x</em> = 745
This equation tells us that the fractional part of 1000<em>x</em> and <em>x</em> cancel upon subtracting. This means the block of repeating digits must be 3 digits long.
To verify this, suppose we write <em>x</em> = 0.<em>yyy</em>… , where <em>y</em> consists of 3 digits. Then
1000<em>x</em> = <em>y</em>.<em>yyy</em>…
1000<em>x</em> - <em>x</em> = <em>y</em>.<em>yyy</em>… - 0.<em>yyy</em>…
999<em>x</em> = <em>y</em>
<em>x</em> = <em>y</em>/999
which means <em>y</em> = 745.
Answer:
a + b = 5.30
a + b = 7
No
Step-by-step explanation:
Expressing the information as system of linear equation :
Let apples = a, oranges = b
If $5.30 is charged for one apple and one orange, then we have ;
a + b = 5.30 - - - (1)
If $14 is charged for 2 apples and 2 oranges, then we have ;
2a + 2b = 14 - - - - (2)
a + b = 7
Since both equations gives varying combined cost for equal amount of the fruit, then a unique cost cannot be obtained for each fruit from the systems of equation using simultaneous equation process.
From (1)
a = 5.30 - b
Put a = 5.30 - b in (2)
2(5.30 - b) + 2b = 14
10.6 - 2b + 2b = 14
10.6 = 14 - - - - - (variables cancels out).
Answer:
x=7
Step-by-step explanation:
(12x+1))+(5x-3)=117
conbine like terms
17x-2=117
+2 +2
17x=119
/17 /17
x=7
I'm sorry! i really wish i could help you out more on this one. personally, i'm pretty confused myself. i think the data should have more years because i'm not sure how you're supposed to give a reasonably close predicted value when it's so far apart. your graph looks really good though other than the trend line should be straight across the points i believe. i could try to link a photo if you're not sure of what i'm talking about. i'll keep looking at this one though and let you know if i figure anything out.
