Solve for y 9x - y = -6x + 4y
2 answers:
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Answer:
The coordinates of the point is (3,5 , 400)
Step-by-step explanation:
The question is incomplete as the graph is not given in the question. Lets complete the question first. I have attached the graph related to this question below.
We can see in the graph that x-axis represents the years while the y-axis represents the pennies collected by Harry.
We have to find the coordinates of the point where he is able to collect 400 pennies.
As y-axis represents pennies, and the point to be found is at 400 pennies, so the y-coordinates of the point is 400.
Harry collects 400 pennies when he is halfway through 4rth year, which means that he has been collecting for:
3 years + Half of 4rth year = 3.5 years.
As x-axis represents the year and the point to be found is at 3.5 years, so the x-coordinate of the point is 3.5.
So, the coordinates of the point is (3,5 , 400)
This point can be seen in the second graph
Answer:
The final cost for him is;
Explanation:
Given that the ipod costs $220;
The store gives a 35% discount, which means he will only pay 65% of the original cost;
The store price is;
Also he will need to pay additional 8% sales tax on the discounted price P;
The final cost he need to pay is the sum of the discounted price and the sales tax;
Therefore, the final cost for him is;
