The monthly cost (in dollars) of a long distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for 49 minutes of calls is $14.85 and the monthly cost for 93 minutes is $20.13. What is the monthly cost for 63 minutes of calls?

Q: The price of 1 gallon of unleaded gasoline at the pump dropped to $2.19 on January 1, 2015, and…

A: As the price of  1 gallon of unleaded gasoline is decreasing  4 cents per month starting from…

Q: you start with $150 in your account and withdraw $5 a week. Model this situation with a linear…

A: We have to model the given situation with a linear function.

Q: Assume the cost of a taxi is $2 per ride and $2.20 per mile. What function represents your total can…

A:

Q: The total annual spending on ads for the NCAA basketball tournament has changed approximately…

A:

Q: The weekly rental cost of a 20-foot recreational vehicle is$129.50 plus $0.15 per mile.(a) Find a…

A: Given:            Cost of a 20-foot recreational vehicle is $129.50 plus $0.15 per mile.

Q: You and your friend join a new gym that requires a one-time joining fee and monthly payments. Your…

A: Given thatYour friend stays with the gym for 30 months and pays $1400.You stay with the gym for 20…

Q: Jeff can walk comfortably at 3 miles per hour. Find a linear function d that represents the total…

A: Graphically, the linear function representing the relationship between an independent variable let's…

Q: You purchase a luxury platinum iphone case for your sweetheart for $3,587 for a company in Dubai and…

A: Total Amount is $3587.Monthly installment is $211.Let the total number of moth required be m.Then…

Q: Find a linear cost function. Twelve units cost $445; 50 units cost $1585.

A: Consider, the cost function be C(x)=mx+b where m is the cost  per unit item and b is additional…

Q: suppose the total cost for a company to produce 150 washing machine is $46,500. the same company can…

A:

Q: A repair company charges a fixed amount plus an hourly rate for a service call. Suppose it charges…

A: To find the linear function that describes the price of a service call in terms of x, the number of…

Q: You buy a new car for $25,000 and 2 years later, the car is valued at $17,500. Assuming that the…

A: Let us consider that after t years the car is worth C(t). Since the depreciation is linear, let C(t)…

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.