Jessica has the option to switch to a plan that charges $65.00 per month with unlimited text messages. Jessica typically sends a
bout 900 text messages per month. Does it make sense for her to switch to the new plan ? explain.
2 answers:
Jessica has the option to switch to a plan that charges $65.00 per month with unlimited text messages.
Jessica typically sends about 900 text messages per month.
Cost per message under the new plan = $65 / 900 = $ 0.072 per message
It make sense for her to switch to the new plan only if the cost per message in her existing plan is more than $ 0.072
Hope this helps..!!
Thank you :)
No, because that would mean that she is spending about $13.85 on 1 message per month. That is ridiculous lol.
You might be interested in
let's multiply both sides by the LCD of all fractions, in this case is 4, just to do away with the denominators for a few seconds
![\bf f(x) = \cfrac{1}{4}x^2+\cfrac{1}{2}x-\cfrac{35}{4}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{4}}{4[f(x)]=4\left( \cfrac{1}{4}x^2+\cfrac{1}{2}x-\cfrac{35}{4} \right)} \\\\\\ 4f(x) = x^2+2x-35\implies 4f(x) = (x+7)(x-5) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill f(x) = \cfrac{1}{4}(x+7)(x-5)~\hfill](https://tex.z-dn.net/?f=%5Cbf%20f%28x%29%20%3D%20%5Ccfrac%7B1%7D%7B4%7Dx%5E2%2B%5Ccfrac%7B1%7D%7B2%7Dx-%5Ccfrac%7B35%7D%7B4%7D%5Cimplies%20%5Cstackrel%7B%5Ctextit%7Bmultiplying%20both%20sides%20by%20%7D%5Cstackrel%7BLCD%7D%7B4%7D%7D%7B4%5Bf%28x%29%5D%3D4%5Cleft%28%20%5Ccfrac%7B1%7D%7B4%7Dx%5E2%2B%5Ccfrac%7B1%7D%7B2%7Dx-%5Ccfrac%7B35%7D%7B4%7D%20%5Cright%29%7D%20%5C%5C%5C%5C%5C%5C%204f%28x%29%20%3D%20x%5E2%2B2x-35%5Cimplies%204f%28x%29%20%3D%20%28x%2B7%29%28x-5%29%20%5C%5C%5C%5C%5B-0.35em%5D%20%5Crule%7B34em%7D%7B0.25pt%7D%5C%5C%5C%5C%20~%5Chfill%20f%28x%29%20%3D%20%5Ccfrac%7B1%7D%7B4%7D%28x%2B7%29%28x-5%29~%5Chfill)
Ones ................................................
So, there is a 7 hour span. There is 35 degree change total. So solve. Take 37/7=5
5 is the average
Answer:
person
Step-by-step explanation:
9 person × 5 hours
= 45 person-hours
Sorry if there any mistakes
