Coach miller bought 5.15 pounds of beef to make burgers. The cost of ground beef is$ 3.40 per pound. What was the total cost for
2 answers:
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9514 1404 393
Answer:
(c) (3, 6)
Step-by-step explanation:
The only point that is on the line is (3, 6).
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I find a graphing calculator to be a useful tool.
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For solving this "by hand," you put the x- and y-values into the equation and check to see if it is true.
A. 2(0) +3(12) = 36 ≠ 24
B. 2(2) +3(9) = 31 ≠ 24
C. 2(3) +3(6) = 24 . . . . . a solution
D. 2(8) +3(0) = 16 ≠ 24
<u>Answer:</u>
29 years
<u>Step-by-step explanation:</u>
- Given the function
, where x stands for the number of years since the material was put into the vault, we can plug 140 into x to find the amount leftover.
- Another way of doing this is to change the function to
which are equivalent functions, and then plug 140 into x. This function is helpful if you also needed to find the rate.
- I'll use the 1st function because the question doesn't ask for the rate
From here I'll just use a calculator & get 28.7, or 29 years.