company Splint has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 320 minutes, the monthly cost will be $161. If the customer uses 750 minutes, the monthly cost will be $333. A) Find an equation in the form y = mx + b, where is the number of monthly minutes used and y is the total monthly of the Splint plan. Answer: y = Do not use any commas in your answer. B) Use your equation to find the total monthly cost if 864 minutes are used. Answer: If 864 minutes are used, the total cost will be dollars.
In 1992, the moose population in a park was measured to be 4620. By 1996, the population was measured again to be 4140. If the population continues to change linearly: A.) Find a formula for the moose population, P, in terms of t, the years since 1990. P(t) = B.) What does your model predict the moose population to be in 2005?
Suppose that the world's current oil reserves is R = 1990 billion barrels. If, on average, the total reserves is decreasing by 23 billion barrels of oil each year, answer the following: A.) Give a linear equation for the total remaining oil reserves, R, in terms of t, the number of years since now. (Be sure to use the correct variable and Preview before you submit.) R= billions of barrels. B.) 10 years from now, the total oil reserves will be C.) If no other oil is deposited into the reserves, the world's oil reserves will be completely depleted (all used up) approximately years from now. (Round your answer to two decimal places.)
You are choosing between two different cell phone plans. The first plan charges a rate of 21 cents per minute. The second plan charges a monthly fee of $49.95 plus 9 cents per minute. How many minutes would you have to use in a month in order for the second plan to be preferable?
Write an equation (any form) for the quadratic graphed below: S 4 3 2 -5-4-3-2-1 7 -1 -2 2 3 4 5
Write an equation for the quadratic graphed below: x-intercepts: (-1,0) and (2,0); y-intercept: (0,1) -1 2 a
Put the equation y = x² + 4x - 5 into the form y = (xh)² + k: Answer: y =
The phone The phone company Splint has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount
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