Answer:
30 mi/ 24 mi (6 mi slower)
Step-by-step explanation:
distance = rate x time
distance = 20 mph * X hr = 20 X miles
return trip:
distance = 16 mph * X hr + 6 miles = 16X + 6
They are the same:
20X = 16X + 6
4X = 6
X = 6/4 = 3/2
20 mph * 3/2 hr = 30 miles.
On the return trip: 16 mph * 3/2 hr = 24 miles, which is 6 miles short of 30 mi.
The distance is 30 miles.
The bird flies all 30 miles in 3/2 hr = 1 and 1/2 hour = 1 hour 30 minutes.
On the return trip, the bird flies 24 miles in 1.5 hours, which is 6 miles short.
Answer:
Step-by-step explanation:
Coin 1 = quarter
Coin 2 = dine
Coin 3 = penny
Answer:
yes equation in standard form of advertising with a room stream NY
Responder:
Altura = 26
Base = 20
Explicación paso a paso:
Dado que :
Dejar :
Base = b
Altura = 6 + b
Área del rectángulo = base * altura
520 = b * (6 + b)
520 = 6b * b²
b² + 6b - 520 = 0
b² + 26b - 20b - 520 = 0
segundo (segundo + 26) - 20 (segundo + 26) = 0
b + 26 = 0
b = - 26
b - 20 = 0
b = 20
Ignorar negativo
b = 20
Altura = 20 + 6 = 26