Use photos math it helps alot
The slope is 3/2(
0,4) and (2,7) the distance is 3 rising and 2 to the side. Remember rise over run so I would be 3/2
Answer:
c and a i think
Step-by-step explanation:
<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>
The mistake was when she multiplied the 2nd equation by 5, she forgot to also multiply that last number 10 by 5 as well.
correction :
5x + 3y - z = 15
-x + 2y + 3z = 10...multiply by 5
---------------------
5x + 3y - z = 15
-5x + 10y + 15z = 50 (result of multiplying by 5)
--------------------add
13y + 14z = 65
