Respuesta :
Answer: [tex]x \leq 30[/tex] is the required inequality.
Step-by-step explanation:
Let x be the greatest number of text message that he can do,
And, According to the question,
The cost of one text message = $0.20
And, Initially the amounts he has = $10
But, after spending $4 the remaining amount he has = 10 - 4 = $ 6
Now, total cost of the x messages = 0.20 x dollar
Again according to the question,
[tex]0.20x \leq 6[/tex]
⇒[tex]x \leq \frac{6}{0.2}[/tex]
⇒ [tex]x \leq 30[/tex]
Which is the required inequality.
By this we can say that he can do maximum 30 messages with the money he has.
Answer:
[tex]0.20x\leq 6[/tex]
[tex]x\leq 30[/tex]
Step-by-step explanation:
Given : cost of one text message = $0.20
the amounts he has = $10
he already spent $4
Solution:
the remaining amount he has after spending =10 - 4 = $ 6
So, Let the greatest number of text message that he can do be x
so,total cost of the x messages = 0.20 x dollar
as given in the question he cannot spend more than 10 dollar and at present he is left only with 6 dollar so right now he can spend only less than or equal to 6 dollar.
so inequality will be [tex]0.20x\leq 6[/tex] ---(A)
[tex]x\leq \frac{6}{0.20}[/tex]
[tex]x\leq 30[/tex]
Hence (A) is the required inequality.
So, he can do maximum 30 messages with $6.
