A store is having a sale on walnuts and chocolate chips. For 9 pounds of walnuts and 7 pounds of chocolate chips, the total cost
is $42. For 3 pounds of walnuts
and 5 pounds of chocolate chips, the total cost is $24. Find the cost for each pound of walnuts and each pound of chocolate chips.
and 5 pounds of chocolate chips, the total cost is $24. Find the cost for each pound of walnuts and each pound of chocolate chips.
1 answer:
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Hello from MrBillDoesMath!
Answer:
See Discussion section below for details
Root 1: -2, -1
Root 2: 0, 1
Root 3: 1, 2
Discussion:
From the attached plot, the the real zeroes are approximately
-1.8, .3, 1.5
-2 < -1.8 < -1
0 < 0.3 < 1
1 < 1.5 < 2
The consecutive integers are shown in bold face
Out of curiosity, it's now 11:38am PST. Did you write the question from a public school room, a school computer lab, or are you home tutored?
Thank you,
MrB
