$40-$10=$30, so Betty spent $30 on the 12 packets of popcorn. This means that we need to share the $30 by 12 to find out how much each packet had cost. $30÷12=$2.50. Therefore, your answer is $2.50.
Answer:
Step-by-step explanation:
Given that a person’s body surface area (BSA) (in meters squared) using the formula
![BSA =\frac{\sqrt{hm} }{60}](https://tex.z-dn.net/?f=BSA%20%3D%5Cfrac%7B%5Csqrt%7Bhm%7D%20%7D%7B60%7D)
We are to calculate the rate of change of BSA with respect to mass for a person of constant height h = 180 from m =70 to m =80
For this we calculate BSA for 80 kg and BSA for 70 kg first
Rate of change = ![BSA(80)-BSA(70)](https://tex.z-dn.net/?f=BSA%2880%29-BSA%2870%29)
=![\frac{\sqrt{180*80} }{60} -\frac{\sqrt{180*70} }{60} \\=2-1.871\\=0.129](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B180%2A80%7D%20%7D%7B60%7D%20-%5Cfrac%7B%5Csqrt%7B180%2A70%7D%20%7D%7B60%7D%20%5C%5C%3D2-1.871%5C%5C%3D0.129)
i.e. rate of change per 10 kg is 0.129
No BSA does not increase more rapidly
102/8 = 12.75
Your answer would be $12.75
Hope this helps!
Solve for the first variable in one the equations then substitute the result into the other equation so the answer is (2,5)
Answer:
Step-by-step explanation:
This question is too difficult