y=3 and x= 5
Step-by-step explanation:
- 3×+×=-1 and 4y-2y=3
- 4×=1 and 2y=3
- ×=4-1 and y=3+2
- x=3 and y=5
Answer will be -24
+4-24-4 = -24
The answer is no solutions
Answer:
Speed of plane in still air = 135 km/h
Speed of wind = 23 km/h
Step-by-step explanation:
Given that:
Speed of plane with the wind = 158km/h
Speed of plane against the wind = 112km/h
Let,
x be the speed of plane
y be the speed of wind
According to given statement;
x+y = 158 Eqn 1
x-y = 112 Eqn 2
Adding Eqn 1 and 2
Putting x = 135 in Eqn 1
135+y = 158
y = 158-135
y = 23
Hence,
Speed of plane in still air = 135 km/h
Speed of wind = 23 km/h
Area of the wall = (28 feet) x (12 feet) = 336 square feet
Time that Tyler took = 514 hours
Speed at which Tyler tackled the tinting task =
(area painted) / (time taken)
= (336 square feet) / (514 hours)
= 0.654... square foot per hour . (rounded)
And now, a Brainly Reality/Sanity Check:
-- 0.654 square foot is almost exactly the area of a standard sheet
of printer paper or notebook paper (one side of it).
-- Every time Tyler painted that much area, he took an hour to do it.
-- If he worked 24/7 without stops for sleep, food, or pits, it took him
3 weeks and 10 hours to paint the wall.
-- If he only worked Painters' Union hours ... 8 hours a day, 5 days a week ...
then the job took him 12 weeks, 45 days, and 2 hours.
-- Tyler was doing other things besides painting the wall.
