Mrs Lim bought a number of plates at an average price of $6. She decided to buy another plate which cost $18. The average price
1 answer:
Answer: 6
<u>Step-by-step explanation:</u>
Let x represent the number of plates bought for $6
Let y represent the Total number of plates bought = x + 1
<em>Remember that Mrs. Lim bought another plate for $18</em>
Total cost ÷ Total plates = Average Cost
6x + 18 = 8(x + 1)
6x + 18 = 8x + 8
18 = 2x + 8
10 = 2x
5 = x
y = x + 1
= 5 + 1
= 6
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Answer:
Solution
x = 1
y = 3
Step-by-step explanation:
To easily solve this question, we plot both graphs using a graphing tool.
Please se attached picture.
We are basically solving the system of equations and finding the intersection point (x) at which both values of y become equal (f(x)=g(x))
By looking at the graph, we can see that the point is
x = 1
y = 3
f(1) = 2*1 +1 = 3
g(1) = -1 +4 = 3
The answer is 5 13/15 or atleast according to calculator.net (the website used in the picture) :)
