Answer:
8.5 ft is the length, and 7 ft is the width.
Step-by-step explanation:
8.5 ft is the length
In order to rationalize the denominator of each expression, we need to multiply the expression by the same radical in the denominator, this way we can remove the radical from the denominator.
9)
10)
11)
12)
Answer:
3/8 cup of butter
Step-by-step explanation:
1/4 / 2 = 1/8
1/8x3=3/8
Answer:
64.6 degrees
Step-by-step explanation:
127.6 degrees - 63 degrees= 64.6
Answer:
30 km/h
Step-by-step explanation:
usual speed= x km/h
increased speed= x +10 km/h
distance= 360 km
time difference= 3 h
- 360/x= 360/(x+10) +3
- 360/x= (360+ 3x+30)/(x+10)
- 360(x+10)= x(390+3x)
- 360x+3600= 390x+ 3x²
- 3x² + 30 x -3600=0
- x²+10x-1200=0
- x=30 km/h