Answer:
Step-by-step explanation:
Let the x-axis be the time (in years) and the y-axis the value of the fax machine (in dollars).
We know that the initial value of the fax machine is $100; in other words, when the time is zero years, the value is $100, or as an ordered pair (0, 100). We also know that after 1 year the value decreases to $80, so (1, 80).
Now we can find the slope of the line passing through those two points using the slope formula
where
is the slope
are the coordinates of the first point
are the coordinates of the second point
Replacing values:
Now, to complete our model we are using the point slope formula
where
is the slope
are the coordinates of the first point
Replacing values:
We can conclude that the correct linear depreciation model is
A²=25 then a = + 5 & a =-5, so this ellipse intercepts the x axis at the points +5 & -5
Answer:
92 tablespoons
Step-by-step explanation:
16 tablespoons = 1 cup, in the recipe you need 1/4 cup for a batch, Rhonda needs 23 batches, so 23/4 to get the 1/4 cup, that's 5.75 cups, then you do 5.75*16 to get the tablespoons
Answer:
He needs 0.075 lbs of sugar and 4.925 lbs of water.
Step-by-step explanation:
Let x lbs be the amount of sugar in the syrup. Then 5-x lbs is the amount of water in this syrup.
Note
5 lbs - 100%
x lbs - 1.5%
Write a proportion:
Cross multiply:
So, he needs 0.075 lbs of sugar and 5 - 0.075 = 4.925 lbs of water.
