contestada

The formula a = m − n represents the actual cost, a, of an item with original price m after a coupon for n dollars off is applied. Solve the formula for the amount of the coupon. Group of answer choices n=a+m n=m−a n = a − m n = −m − a

Respuesta :

Answer: Option B.

Step-by-step explanation:

The given formula is

[tex]a=m-n[/tex]

where,

a = actual cost of an item.

m = Original price

n = Amount of coupon

We need to solve the formula for the amount of the coupon (n).

In means, we need to isolate n in the given formula.

We have,

[tex]a=m-n[/tex]

Subtract m form both sides.

[tex]a-m=m-n-m[/tex]

[tex]a-m=-n[/tex]

Multiply both sides by -1.

[tex]-(a-m)=n[/tex]

[tex]-(a)-(-m)=n[/tex]

[tex]-a+m=n[/tex]

So, [tex]n=m-a[/tex].

Therefore, the correct option is B.

Otras preguntas