Get the denominator down to a one
15 ÷ 10
__
10 ÷ 10.
the unit rate is 1.5 / 1
the multipy to get the right denominator.
1.5 × 120 = 180
_________ ____
1 × 120 = 120
1.5. 15. 180. 135. 45
___ ____ ___ ____ ____
1. 10. 120. 90. 30
Answer:
The answers are in the question.
Step-by-step explanation:
The wording can be off-putting but the answers are mostly there for you. It says that when the wind was at the tail of the plane, the travel was hastened to 5 hours instead of six. Is the rate of speed with the wind in favor of the plane is r+21, then it stands to reason that traveling AGAINST the wind will cause the rate to drop to r-21. Taking the average of the two travel times (5 and 6 hours each), we get 5.5 hours. Since speed is distance divided by time, the speed of the plane in still air will be <em>d</em> / 5.5
Be sure to label the speed as mph.
Answer:
3 1/5 (or 3.5)
Step-by-step explanation:
2(7) - 7(-1)
_______
7 + -1
Next:
14 + 7 (two negatives make a positive)
_____
6
Next:
21/6 which equals 3 1/2 (3.5)
Let n be the number of times she walked around the pond
(3 3/8) / (3/8) = n
=> 9 = n
Vanessa walked around the pond 9 times
80,000,000+9,000,000+100,000+70,000+300+20+6
