B 8:00 am
8:00+1:25=9:25
9:25+25=9:50
9:50+30=10:20
B $240
60×2=120×2=240
Answer:
-6
Step-by-step explanation:
add -3n and -4n= -7n
add 17 to 25
-7n=42
n=-6
5^9/5^5= 625
You can either change the exponents to their equivalent whole numbers or subtract exponents.
The answer could also be represented as 5^4
3.5 cups of sugar
Once you divide do the math you will divide 2 by 4 and get .5 and times that by 7 and you’ll get 7
Step-by-step explanation:
Let x miles/hr be the speed of the plane in still air and y miles/hr be the speed of the wind.
We have 10hr * (x + y)miles/hr = 880 miles
and 20 hr * (x - y)miles/hr = 880 miles.
=> (x + y) = 88 and (x - y) = 44.
Therefore 2x = 88 + 44 = 132 and x = 66.
The speed of the plane in still air is 66 miles per hour.