Time = t = ?
Distance 1 = d1 = 224 miles
Distance 2 = d2 = 175 miles
speed1 = v1 = d1/t
speed2 = v2 = d2/t
Also, speed 1 = 14 + v2 (Given in the data)
OR speed 1 = 14 + d2/t
speed 1 = 14 + 175/t
224/t = 14 + 175/t
multiplying both sides (each term) by "t" we get
224 = 14t +175
OR 14t = 49
t = 3.5 hours
now, speed of 1st car = 224 miles / 3.5 hours
= 64 miles / hour
and speed of 2nd car = 175 miles / 3.5 hours
= 50 miles/ hour
Answer:8%
Step-by-step explanation:
7200x8%=576
1%=72
576 divide by 72= 8%
Answer:
8ax + (4a²- 6a)
Step-by-step explanation:
g(x)=4x²−6x
g(x+a)
= 4(x+a)² - 6(x+a)
= 4( x² + 2ax + a²) - 6x - 6a
= 4x² + (4)2ax + (4)a² - 6x - 6a
= 4x² + 8ax + 4a² - 6x - 6a
= 4x² + 8ax - 6x + 4a²- 6a
= 4x² + (8a - 6)x + (4a²- 6a)
g(x+a) - g(x)
= [4x² + (8a - 6)x + (4a²- 6a)] - (4x²−6x)
= 4x² + (8a - 6)x + (4a²- 6a) - 4x² + 6x
= (8a - 6)x + (4a²- 6a) + 6x
= (8a - 6 + 6)x + (4a²- 6a)
= 8ax + (4a²- 6a)
2 miles equals 2 x1760 = 3520 yards.
