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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

ALSO THERES THIS QUESTION TOO

Deon plans to ride a 15-mi bicycle trail. If his average speed is 20 mi/h, which equation can he use to find the time t, in hours, for the ride? Group of answer choices
T = 20 - 15
T = 20 / 15
T = 20 x 15
T = 15 / 20
PLEASE HELP FAST

Respuesta :

Answer:

1). Option (2)

2). Option (4)

Step-by-step explanation:

1). Formula to evaluate the actual cost 'a' of an item with original price 'm' and a discount coupon for 'n' dollars applied will be,

a = m - n

n = m - a

Therefore, expression (2) will be the answer.

2). Deon ride a 15 mi bicycle trail.

Average speed of the trail is = 20 miles per hour

From the formula,

Speed = [tex]\frac{\text{Distance}}{\text{time}}[/tex]

Time = [tex]\frac{\text{Distance}}{\text{Speed}}[/tex]

        = [tex]\frac{15}{20}[/tex] hours

Therefore, Option (4) will be the answer.

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