Well let’s find the actually mean
First we add up all the numbers
87+46+90+78+89 = 390
Next we divide 390 by how many numbers there are.
390/5 = 78
Therefore the mean is 78
Emi failed to find the difference
Answer:
Step-by-step explanation:
I(x)=P(13x) = 2(13x)²+3(13x) +4
I(x)=P(13x).= 338x²+39x+4
Here's the equation:
0 = 60 x gallons - 420
In order to get how many gallons you need to make 0$ in profit, you need to:
1) Divide 420<span>÷60
2) 420</span><span>÷60=7
3) Plug it in: 0 = 60 x 7 - 420
4) Does it work? Yes.
5) Therefore, the answer is 7.</span>
