Answer:
B
Step-by-step explanation:
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:
0.422
Step-by-step explanation:
0.422 is the valid answer
422/1000
=.422
=0.422
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Answer: p = - 61/36
Step-by-step explanation: first - calculate: 36p+18+8= -35 then add the numbers we can, together : 36p+ 26= -35 then move the constant to the right: 36 p = -35 - 26, now calculate the difference: 36 p = -61 divide both sides which equals -61/36
Answer:
look at the picture above please
