<span>We know that the cost of 5 kg of peanuts is $4.50, then the unit price per kilogram is
$4.50/5 kg = 0.90 $/kg
And the unit price per gram is:
$0.90 / kg * 1 kg/1000 = 0.0009 $/g or 0.09 cents/gram</span>
My gut is telling me that the answer is C. 5
Answer:
20
Step-by-step explanation:
We will express second equation in first.
y = 3x + 2
after that we get:
3x + 2 = x^2 + 3x - 7
x^2 -9 = 0
x^2 = 9
x1 = 3
x2 = -3
y1 = 3*3+2 = 11
y2 = -3*3 + 2 = -7
we get pairs:
(3,11) and (-3,-7)
Answer is first option.
