Mathematics, 06.11.2019 09:31, 1536468
Ms. callahan works hard to budget and predict her costs for each month. she is currently attempting to determine how much her cell phone company will likely charge her for the month. she is paying a flat fee of $80 a month for a plan that allows for unlimited calling but costs her an additional twenty cents per text message.
a. write a function, c(t), for ms. callahan’s current cell plan that will calculate the cost for the month based on the number of text messages she makes.
b. find c(20) d. find c(t) = 100
c. find c(45) e. find c(t) = 90
f. at what number of texts would $20 unlimited texting be less expensive then her current plan?
Answers: 1
Mathematics, 21.06.2019 18:10, normahernandez977
Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12
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Mathematics, 21.06.2019 21:00, lunnar2003
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)
Answers: 3
Mathematics, 22.06.2019 01:00, chandranewlon
Ellie spent $88.79 at the computer stote. she had $44.50 left to buy a cool hat. how much money did she originally have? write and solve an equation to answer the question.
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