Answer:
0.03
Step-by-step explanation:
<u>Brand A: 11 fluid ounces and costs $2.31</u>
2.31 / 11
0.21 per fluid ounce
<u>Brand B: 15 fluid ounces and costs $2.70</u>
2.70 / 15
0.18 per fluid ounce
<u>Subtract: </u>
0.21 - 0.18
0.03
Answer: 0.03
$11 is the independent and the $30 is dependent because to get the $30 a week, it depends on that $11 per house.
Firstly, solve 38C15.
Then solve 42C12.
Compare your answers.
The goal here is to see if 38C15 = 42C12.
Here is the formula:
nCr = n!/(r!(n - r)!
Go for it.
It would be 5 and 6, because consecutive integers follow each other, so twice the sum of 5 and 6 would be 22.