The numbers of bars that the team have to get from each company in order for the total cost to be equal is 40.
<h3>What is the purchase about?</h3>
Since n = numbers of bars purchase.
y= total cost in dollars
Company A = 0.75n
Company B = 10 + 0.50n
Therefore, to find the numbers of bars that the team would need to purchase from each company in order for the total cost to be equal =
0.75n = 10 + 0.50n
0.2n = 10
n = 40
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We start with
We can factor x at the numerator:
So, assuming 
(otherwise the expression would make no sense) we can simplify it:
This equation has no roots, so we can't simplify it any further.
Answer:
x = 4.
Step-by-step explanation:
Distribute, isolate and solve.
In 5 years, the price increased about 30%.
I am not good at perentages, so correct me if I'm wrong. Also this is an estimation, not the exact percentage.
$.75 bc 15 x 4 is 75 so that would make 75¢ or $.75
