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ziro4ka [17]
3 years ago
8

Please help me convert this to an equation with an explanation. Linda is shopping for a new cell phone and rate plan. She wants

to compare basic plans from two different companies. Both plans will offer the same number of minutes per month, but have a charge per text message. Company A's plan will charge $39.99 per month plus $0.10 per text message. Company B's plan will charge $19.99 a month plus $0.20 per text message. Linda wants to know how many text messages she will have to send in order for the plan costs to be the same. Write an equation to model the situation. Let t represent the number of text messages.
I have this question, but I would appreciate some guidance with it. I'm not the best at converting these to a proper equation. I would appreciate it if someone might help me.
Mathematics
1 answer:
vovikov84 [41]3 years ago
6 0
39.99+.10t=19.99+.20t Now -19.99 from both sides to get 19.00+.10=.20t Now simplify 19+.10 to 19.10=.20t Lastly divide both sides by .20 to get t=95.5 :)
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3 years ago
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ser-zykov [4K]

Answer:

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Step-by-step explanation:

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Given f(x)=x3 and g(x)= 1-5x2, fine (fog)(x) and it’s Domain
andre [41]

Answer:

Option B. f(g(x)) = (1-5x ^ 2) ^ 3  all real numbers

Step-by-step explanation:

We have

f(x) = x ^ 3 and g(x) = 1-5x ^ 2

They ask us to find

(fog)(x) and it's Domain

To solve this problem we must introduce the function g(x) within the function f(x)

That is, we must do f(g(x)).

So, we have:

f(x) = x ^ 3

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Then:

f(g(x)) = (1-5x ^ 2) ^ 3

The domain of the function f(g(x)) is the range of the function g(x) = 1-5x ^ 2.

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Therefore the correct answer is the option b: f(g(x)) = (1-5x ^ 2) ^ 3

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5 0
3 years ago
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Charles drew a plan for a rectangular piece of
dalvyx [7]

The fourth coordinate of rectangular piece of material is (2.8 , -2.7)

According to the question,

Charles drew a plan for a rectangular piece of material that he will use for a blanket. Three of the vertices are (-1.4, -2.7), (-1.4,3.7), and (2.8,3.7).

As we know , the opposite sides of rectangle are equal

If we locate these coordinates in our graph and join them

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Subtracting 6.4 from y-axis,

Fourth coordinate = 3.7 - 6.4

= -2.7

Therefore , The fourth side of rectangle = (2.8 , -2.7)

To know more about Rectangle here

brainly.com/question/14207995

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4 0
1 year ago
It costs $100 to rent the bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expres
Nataly [62]
Answer = $160

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-Hope it helps!
8 0
3 years ago
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