A store sells rope by the meter The equation p=0.8L represents the price p (in dollars) of a piece of nylon rope that is L meters long. a. How much does the nylon rope cost per …

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asked Dec 7, 2019 50.3k views

2 Answers

Iceweasel · Answer 1 · 2019-12-07T09:41:23+0000

Answer:

a. $ 0.8

b. 1.25 meters.

Explanation:

Given equation that represents the price p (in dollars) of a piece of nylon rope having length L meters,

p=0.8L

a. If L = 1 meter,

The cost of the rope would be,

$p=0.8(1) = \$ 0.8$

b. if p = $ 1.00,

$\implies 1 = 0.8L$

$\implies L=(1)/(0.8)=1.25$

Thus, the length of the rope would be 1.25 meters.

Bdar · Answer 2 · 2019-12-12T19:33:38+0000

(a) $0.80

(b) 1.25 m

(a) Put 1 where L is, and evaluate the equation.

... p = 0.8·1 = 0.8

The cost for 1 meter of rope is $0.80.

(b) Put 1 where p is and solve for L.

... 1 = 0.8L

... 1/0.8 = L = 1.25

The length of rope that costs $1 is 1.25 meters.