Question
Naphtali’s cell phone company charges $0.25 per text plus a $10 flat fee. Asher’s cell phone company charges $0.10 per text plus a $25 flat fee. At how many texts are Naphtali and Asher paying exactly the same amount?
Hint:
- Hint:
○ Form the equation according to given information..
○ Take variable values as x or any alphabet.
○ Solve the equation to get value of x.
The correct answer is: x = 100
- Step by step explanation:
○ Given:
Napthali cell phone company:
Charge per text = $0.25 and flat fee = $10.
Asher cell phone company:
Charge per text = $0.10 and flat fee = $25.
○ Step 1:
○ Let after x texts they pay same amount.
∴ amount Napthali pay for x texts will be,
10 + 0.25x
amount Asher pay for x texts will be,
25 + 0.10x
○ Step 2:
○ Equate the amount paid by Napthali and Asher after x texts.
10 + 0.25x = 25 + 0.10x
0.25x - 0.10x = 25 - 10
0.15x = 15
x =
x = 100
- Final Answer:
Hence, after 100 texts they will pay same amount.
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Informally, a hypothesis is just drawing assumptions about something based on what you already know and have observed.
A conjecture is formally defined as a based-on-observations, a statement considered true.
Speculation is similar to your opinion about something you follow or perhaps a knowledgeable estimate.
For example, observe the numbers below: 2, 4, 6, 8, 10, and 12. What number would come next? You're probably thinking 14, but What led you to that conclusion, and why? You may have seen the pattern and that the list is counting in twos.
The following number is 14 because the list counts by 2's, according to your hypothesis.
You saw the pattern and concluded without making any claim.
Use inductive reasoning to make a conjecture about the sum of a number and itself. Then use deductive reasoning to show the conjecture is true.
Informally, a hypothesis is just drawing assumptions about something based on what you already know and have observed.
A conjecture is formally defined as a based-on-observations, a statement considered true.
Speculation is similar to your opinion about something you follow or perhaps a knowledgeable estimate.
For example, observe the numbers below: 2, 4, 6, 8, 10, and 12. What number would come next? You're probably thinking 14, but What led you to that conclusion, and why? You may have seen the pattern and that the list is counting in twos.
The following number is 14 because the list counts by 2's, according to your hypothesis.
You saw the pattern and concluded without making any claim.