Given:
The cost to install x number of central air conditioning units for a company is given by the function
To find:
The cost to install 45 air conditioners.
Solution:
We have,
Putting x=45, we get
Therefore, the cost to install 45 air conditioners is $60433.33.
Price of gallon of gasoline one year ago is $ 4.1
<em><u>Solution:</u></em>
Given that you pay $ 3.69 for a gallon of gasoline
This is 90% of the price of a gallon of gasoline one year ago
To find: price of a gallon of gasoline one year ago
We can solve this sum by setting up proportion
Let "x" be the price of gallon of gasoline once year ago
By proportions we get,
Thus price of gallon of gasoline one year ago is $ 4.1
Method 2:
you pay $ 3.69 for a gallon of gasoline
Let "x" be the price of gallon of gasoline once year ago
3.69 = 90% of the price of a gallon of gasoline one year ago
3.69 = 90 % of x
Thus price of gallon of gasoline one year ago is $ 4.1
A negative slope makes a line go down to the right.
The line C goes up to the right, so that is not it.
slope = -5 = rise/run = -5/1
For every 5 the y-coordinate goes down, the x-coordinate goes 1 to the right.
Only line B goes down 5 and right 1, so the answer is line B.
Answer: Line B
Answer:
Step-by-step explanation:
Because there are 38 numbers on a roulette table meaning the probability of any number being landed on is 1/38 however if you chose 2 the chances yours would be chose would be 2/36. every number has an equal chance of being landed on.