Acoupon subtracts $17.95 from the price p of a pair of headphones you pay $71.80 for the headphones after using the coupon write and solve an equation to find the original price of the headphones

Original cost: $89.75.

Step-by-step explanation:

Let P represent the original price of the headphones.

We have been given that a coupon subtracts $17.95 from the price P of a pair of headphones.

The cost of headphones after using the coupon would be .

We are also told that you pay $71.80 for the headphones after using the coupon. We can represent this information in an equation as:

Let us solve for P.

Therefore, the original cost of headphones is $89.75.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it