Answer:
-1
-3
1/3
Step-by-step explanation:
Put each of the numbers in for y and solve for x
8 = 3x -1
9 = 3x
x -3
21 times because you need 7/4=1 gallon and 3/4 just for one and 7x3 =21 so need 21/4
Answer:
Look at the picture
Step-by-step explanation:
Answer:
- plane: 530 mi/h
- wind: 40 mi/h
Step-by-step explanation:
Let p and w represent the speeds of the plane and the wind. The relation between time, speed, and distance is ...
speed = distance/time
p +w = (2565 mi)/(4.5 h) = 570 mi/h
p -w = (2205 mi)/(4.5 h) = 490 mi/h
Adding these speeds, we get ...
(p +w) +(p -w) = (570) +(490) mi/h
2p = 1060 mi/h
p = 530 mi/h
Then the speed of the wind is ...
w = 570 mi/h -p = (570 -530) mi/h = 40 mi/h
The plane's speed is 530 mi/h; the wind speed is 40 mi/h.
Answer:
the answer I got is p=-176/3 that's the only answer I got