Let, the speed of boat = x
Speed of current = y
So, x + y = 280/7
x + y = 40 ---- first equation
x - y = 280/14
x - y = 20
x = 20 + y
Substitute this value of x in first equation,
20 + y + y = 40
2y = 40 - 20
y = 20/2
y = 10
Substitute this in first equation,
x + 10 = 40
x = 30
In short, Speed of Boat = 30 mph, & speed of current = 10 mph
Hope this helps!
Answer:
About 36.5 pieces
Step-by-step explanation:
divide 2850 by 78 and round to the nearest tenth. hope this helped
The angles of a quadrilateral add to 360, so we can solve for x by adding the 4 angle measures together and setting it equal to 360:
90 + 140 + (x - 10) + (x - 20) = 360
Combine like terms:
230 + 2x - 30 = 360
200 + 2x = 360
200 - (200) + 2x = 360 - (200)
2x = 160
Divide both sides by 2:
2x/(2) = 160/(2)
x = 80
Answer:
B
Step-by-step explanation:
It's B
First we multiply the coefficients. 6*3= 18, so we can immediately cross out A and D. Now, c^2 * c is c^3. So, its B.
Hope this helps !!
-Ketifa
Answer: 6/5
Step-by-step explanation:
Given the points:
(–2, –1) and (3, 5)
x1 = - 2 ; y1 = - 1 ; x2 = 3 ; y2 = 5
Slope is the change in y divided change in x
Slope = change in y / change in x
Slope = (y2 - y1) / (x2 - x1)
Slope = (5 - (-1)) / (3 - (-2))
Slope = (5 + 1) / 3 +2
Slope = 6 / 5
