A roll of glad wrap cost $2.99. A roll of press n seal sells for $3.79 or 5 cents a sqft.?

Question

Press n seal sells for 10/3 times as much per sqft as glad wrap. What is the price of Glad wrap per sqft?

Answer 1

You can ignore the absolute costs. You just need the ratio of their costs and the price per sqft.

You are told the Press-n-Seal is 10/3 times as much as Glad wrap.

Let p = Press-n-Seal's price per sq. ft (5 cents)
Let g = Glad's price per sq. ft.

We know that:
p = 10/3 * g
5 = 10/3 * g

Multiply both sides by the reciprocal of 10/3 (e.g. 3/10)
5 * 3/10 = g
g = 5 * 3/10
g = 15/10
g = 1.5

Glad wrap is 1.5 cents per sq. ft.

Answer 2

If Press 'n Seal sells for 5¢/ft.² and is 10/3 the price of Glad Wrap, then
5 = (10/3)g
(3/10)5 = g
g = 1.5¢/ft.²

(The $2.99 and the $3.79 could help in telling you how many square feet are on each roll, but they're not needed for the question asked.)

Answer 3

Press n seal sells for 10/3 times as much per sqft as glad wrap. So glad wrap costs $.05/(10/3) per square foot, so 1.5 cents per square foot.

Answer 4

(10/3)x = 5
x = 5(3/10)
x = 3/2
x = 1.5 cents

Answer 5

cost of one square feet of n seal =10/3 times the cost of one sq. feet of glad wrap (it is given).......................................i
Let the cost of one sq. ft of glad wrap= x cent................ii
But the cost of one sq. ft of n seal=5cents (given).........iii
Using i,ii,and iii we get
5=10/3x
3x=10/5=2
x=2/3 =0.67cents per sq. ft
Therefore cost of one sq feet of glad wrap =0.67 cent

Answer 6

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Answer 7

It doesn't matter how much it costs, you're paying for convenience.