Can y’all plz help me plz
2 answers:
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Answer:
The maximum number of text message John can send is 100
Step-by-step explanation:
Given as :
The phone bill of the John = $ 10 per month + $ 0.3 per text message
John want his bill amount to be less than $ 40
Let The maximum number of text message John can send = n
According to question
The total bill amount = The cost of phone plan + rate of text message
I.e $ 10 per month + $ 0.3 × maximum number of text message = $ 40
or, $ 0.3 × n = $ 40 - $ 10
Or, $ 0.3 × n = $ 30
∴ n =
I.e n = 100
So, The maximum number of text message John can send = n = 100
Hence The maximum number of text message John can send is 100 Answer
Hello,
Answer C:
<span>the summation from i equals 0 to 3 of the quantity 2 times i squared plus 1
![\sum_{i=0}^3[(i+1-i)*(2*i^2+1)]\\\\ =\sum_{i=0}^3[(2*i^2+1)]\\\\](https://tex.z-dn.net/?f=%5Csum_%7Bi%3D0%7D%5E3%5B%28i%2B1-i%29%2A%282%2Ai%5E2%2B1%29%5D%5C%5C%5C%5C%0A%3D%5Csum_%7Bi%3D0%7D%5E3%5B%282%2Ai%5E2%2B1%29%5D%5C%5C%5C%5C)
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Answer C:
<span>the summation from i equals 0 to 3 of the quantity 2 times i squared plus 1