Answer:
Step-by-step explanation:
The car uses 15 gallons of gasoline to drive 420 miles.
(15 gal)/(420 mi) = 1/28 gal/mi
The car uses 1/28 gallon of gasoline per mile.
y = mx + b
When x = 0, at the start of the drive, the car has 15 gallons of gasoline.
y = mx + 15
Then for every mile it travels, the amount of gasoline goes down by 1/28 gal. For x miles of travel, it uses 1/28 * x gallons of gasoline.
Answer:
4 boxes
Step-by-step explanation:
In this case the number of blueberry muffins doesn't matter. Alyssa has 48 muffins that she wants to pack into 1-dozen boxes.
How many boxes are required?
48 muffins
--------------------- = 4 boxes
12 muffins/box
Answer:
Step-by-step explanation:
(2 , 1) ; ( 3 , 2)
Equation of line: y = mx +b
y = 1x + b
Plugin x = 2 and y = 1 in the above equation
1 = 2 + b
1- 2 = b
b = -1
y = 1x - 1
Answer:
-\left(\dfrac{1}{2}y+\dfrac{1}{4}\right)=-\dfrac{1}{2}y-\dfrac{1}{4}=-\dfrac{1\cdot2}{2\cdot2}y-\dfrac{1}{4}=\dfrac{-2y}{4}-\dfrac{1}{4}=\dfrac{-2y-1}{4}\\\\=-\dfrac{2y+1}{4}
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Step-by-step explanation:
