Ian can buy bottles of water in packages of 6 for $9.24 or in packages of 4 for $8.80. How much money does he save by buying 12
1 answer:
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To solve this, we are going to use the slope formula, and the point slope formula.
Slope formula:
where
is the slope.
are the coordinates of the first point.
are the coordinates of the first point.
Point-slope formula:
Plan A. Coordinates of the first point: (1,14) (number of discs, cost). Coordinates of the second point: (2,17). Lets replace those values in our slope formula:
Now that we have the slope, we can use the point slope formula:
Remember that in a linear equation of the form
, is the slope and 
is the y-intercept. In our model the y-intercept is the membership fee.
Since
in our linear equation, we can conclude that the membership fee is $11
Plan B. Coordinates of the first point (1,12). Coordinates of the second point (2,16).
Membership fee: $8
Plan C. Coordinates of the first point: (1,10). Coordinates of the second point: (2,15).
Membership fee: $5
Part D. Coordinates of the first point: (1,12). Coordinates of the second point (2,21).
Membership fee: $3
We can conclude that the plan that has the smallest one-time membership is <span>Plan D.</span>
Slope formula:
where
Point-slope formula:
Plan A. Coordinates of the first point: (1,14) (number of discs, cost). Coordinates of the second point: (2,17). Lets replace those values in our slope formula:
Now that we have the slope, we can use the point slope formula:
Remember that in a linear equation of the form
Since
Plan B. Coordinates of the first point (1,12). Coordinates of the second point (2,16).
Membership fee: $8
Plan C. Coordinates of the first point: (1,10). Coordinates of the second point: (2,15).
Membership fee: $5
Part D. Coordinates of the first point: (1,12). Coordinates of the second point (2,21).
Membership fee: $3
We can conclude that the plan that has the smallest one-time membership is <span>Plan D.</span>
No, the product is not valid. The number of columns of 
(five) should match the number of rows of 
(four).
Answer:
Step-by-step explanation:
Density is the ratio of an object's mass to its volume, and it measures how compact an object is. The density of an object, p, is directly proportional to its mass, m, and inversely proportional to its volume, V: