L = 2 + .5W
2L + 2W = 40
SOLVING (if needed)
Substitute 2 + .5w in for l in the second equation and solve for w.
2(2 + .5w) + 2w = 40
4 + w + 2w = 40
Combine like terms and subtract 4 from both sides
3w = 36
Divide both sides by 3
w = 12 in.
l = 2 + .5w
l = 2 + .5(12)
l = 8 in.
For an increase of 15% you would add the increase percentage to 1 and multiply that by number of years.
So the multiplication rate would be 1.15
The answers are cut off in the picture, but the one with 1.15 is the top left answer.
3/4 im pretty sure just do 3 divided by 4 to tell
Answer:
speed of cargo plane = 642.857 miles per hr
Step-by-step explanation:
The planes moves in opposite direction . The cargo plane also left Los Angeles 7 hours before the Air force plane. This means the cargo plane has been travelling for 7 hrs before the Air force plane moved.
Air force plane speed = 325 miles per hr
Air force plane time = 2 hrs
speed = distance/time
distance = speed × time
distance covered = 325 × 2 = 650 miles
Cargo plane speed = ?
cargo plane time = 7 hrs
distance covered = 5150 - 650 = 4500 mile
speed = distance/time
speed = 4500/7
speed of cargo plane = 642.857 miles per hr
Answer:
x = -4
Step-by-step explanation:
So first you simplify the equation, then you will know.
Hope this helps! Have a nice day!
