Question

gil owns a small muffin shop. in order to meet his weekly goal, his mean daily earnings must be at least $500. a list of his daily earn for the first 6 days in the week is shown.
425, 515, 475, 620, 525, 415
what is the minimum amount, in dollars, gil must earn on the last day in the week in order to meet his weekly goal? enter the box.
$

Explanation:

Step1: Calculate the total earnings for 7 days

The mean daily earnings must be at least $500$ for 7 days. So the total earnings for 7 days should be at least $500\times7 = 3500$ dollars.

Step2: Calculate the sum of the first 6 - day earnings

Sum of the first 6 - day earnings: $425+515 + 475+620+525+415$

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Step3: Find the minimum earnings on the 7th day

Let \(x\) be the earnings on the 7th day. Then \(2975+x\geqslant3500\), so \(x\geqslant3500 - 2975\)
\(x = 525\)

Answer:

$525$