Help me with some algebra math problems

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tveyltvey123

Mathematics

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I'll post when I get my tutor

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Explanation & Answer

Please, see the attached file for the solution.

Solution
𝟏𝟏𝟏𝟏
𝟏𝟏𝟏𝟏
𝒇𝒇 οΏ½ οΏ½ = οΏ½πŸ’πŸ’ οΏ½ οΏ½ + πŸ‘πŸ‘ = √𝟏𝟏𝟏𝟏 + πŸ‘πŸ‘ = √𝟏𝟏𝟏𝟏 = πŸ’πŸ’
πŸ’πŸ’
πŸ’πŸ’
𝒇𝒇(πŸ—πŸ—) = οΏ½πŸ’πŸ’(πŸ—πŸ—) + πŸ‘πŸ‘ = βˆšπŸ‘πŸ‘πŸ‘πŸ‘ + πŸ‘πŸ‘ = βˆšπŸ‘πŸ‘πŸ‘πŸ‘

𝟏𝟏
𝟏𝟏
𝒇𝒇 οΏ½βˆ’ οΏ½ = οΏ½πŸ’πŸ’ οΏ½βˆ’ οΏ½ + πŸ‘πŸ‘ = βˆšβˆ’πŸπŸ + πŸ‘πŸ‘ = √𝟏𝟏 = 𝟏𝟏
𝟐𝟐
𝟐𝟐

Solution:
Let the fixed amount that the car rental charge be C and the amount charged per of mile be d
We can write the car rentals cost function as:
𝑓𝑓(π‘₯π‘₯) = 𝐢𝐢 + 𝑑𝑑 βˆ™ π‘₯π‘₯

Where x is the distance in miles and f(x) is the total cost in dollars
Heidi rented a car and paid $100 for 200 miles, putting this in the cost function, we have
𝟏𝟏𝟏𝟏𝟏𝟏 = π‘ͺπ‘ͺ + 𝟐𝟐𝟐𝟐𝟐𝟐𝟐𝟐

Also on another day, Heidi paid $152.50 for 350 miles, putting this into the cost function,

Solving the...


Anonymous
Great study resource, helped me a lot.

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