12v + 3b = 243
4v + 4b = 204....multiply by -3
-------------------
12v + 3b = 243
-12v - 12b = - 612 (result of multiplying by -3)
-------------------add
-9b = - 369
b = -369/-9
b = 41 <=== each bus holds 41 students
4v + 4b = 204
4v + 4(41) = 204
4v + 164 = 204
4v = 204 - 164
4v = 40
v = 40/4
v = 10 <== each van holds 10 students
The inequality for this problem would be 10.99c + 8.89b ≤ 25.
To find this, we need to know that for every pound of cashews (c) we have to pay 10.99. That's how we find the first term. Similar for the second in which we charge 8.89 for blueberries (b).
Then when we add these together, we know that they must not be greater than 25. So we can express it with a ≤.
Answer:
Step-by-step explanation:
7x-=6x-9
7x=6x-9
7x+9=6x-9+9
7x+9=6x
7x+6x=9
13x=9
X=0.69
Factor the numerator using difference of cubes:
a = x
b = 2
Now you can evaluate limit as x=2.