Solve this equation 6(4.5y-12)=9
1 answer:
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Answer:
Expression 2b+b and 3b have same values for all values of b.
Step-by-step explanation:
Given the two expression and
and values of b as 1, 2 and 3.
Consider first expression that is, .
Substituting the value of ,
....1
Substituting the value of ,
....2
Substituting the value of ,
....3
Consider second expression that is, .
Substituting the value of ,
....4
Substituting the value of ,
....5
Substituting the value of ,
....6
For value of b=1, equation 1 and equation 4 are same, for value of b=2, equation 2 and equation 5 are same and for value of b=3 equation 3 and equation 6 are same.
Therefore both expression are same for all values of b.
The graph of amount Tom owes his friend after a given time, <em>t</em>, is a straight line graph with a negative slope
Please find attached the required example of a possible graph that shows the amount Tom owes his friend
Reason:
Let <em>A</em> represent the amount of money Tom buys the boat with, let <em>x</em>
represent the amount of equal payment made and <em>y</em> represents the
amount Tom owes the friend after a given time, <em>t</em>, we have;
y = A - x·t
Therefore, the slope of the graph formed is <em>-x</em>, the y-intercept of the graph
is <em>A</em>, from which the graph that gives the amount of money, in dollars, Tom
owes his friend, as a function of time, in years can be presented as follows,
using example values;
A = $25,000 (Amount the Tom agrees to buy the boat)
x = $5,000 (Amount Tom pays each year for the boat)
By plugging in the above example values, the attached graph can be drawn using MS Excel
Learn more about plotting of straight line graphs here:
