Answer:
Andy went as furthest as possible with a gallon of gasoline
Step-by-step explanation:
Let
m ----> the distance in miles
g ----> the number of gallons of gas
step 1
<u><em>Kelley's Mileage</em></u>
Find the slope of the linear function of Kelley's Mileage
we have the points
(0,0) and (20,50)
the linear equation is
step 2
<u><em>Andy's Mileage</em></u>
Find the slope of the linear function of Andy's Mileage
we have the points
(15,78.75) and (30,157.5)
the linear equation is
step 3
Rick's Mileage
we have
therefore
the slope is 
step 4
Compare the slopes
therefore
Andy went as furthest as possible with a gallon of gasoline
Answer:
He received $320 last year
Step-by-step explanation:
Answer: D; 2.72
Step-by-step explanation:
solve for n...
5.6 + 1.4n = 2.4n + 2.88 (expanding brackets)
2.72 = 1n
n = 2.72
Answer:
He'll need 288 cups to make a waffle on his 24 foot diameter circular griddle.
Step-by-step explanation:
In order to find out how much batter Danny needs we first need to compute the area of the first pans, since it is a circular pan their area is given by A = 2*pi*r. So we have:
Area of the first pan = 2*pi*(6/2) = 18.84 square inches
Area of the second pan = 2*pi*(24/2) = 75.36 square foots
We now need to convert these values to be in the same unit, we'll convert from square foots to square inches:
Area of the second pan = 75.36 * (12)^2 = 10851.84 square inches
We can now use a proportion knowing that the batter and the thickness of the waffles are the same. If 0.5 cup of flour can make a waffle on 18.84 square inches then x cup of flour can make a waffle on 10851.85 square inches. Writing this in a mathematical form, we have:
0.5/x = 18.84/10851.84
18.84x = 0.5*10851.85
x = 10851.85*0.5/18.84 =288 cups
