Answer:
x: work a woman can do in 1 day
y: work a girl can do in 1 day
Then
2x + 7y =1/4
4x + 4y =1/3
4x + 14y =2/4 (1)
4x + 4y =1/3 (2)
=> Let (1) - (2), 10y =2/4-1/3 <=>10y = 1/6 <=> y = 1/(6x10) = 1/60 (work)
=> From (2),4x = 1/3 - 4x1/60 => 4x = 16/60 => x = 4/60 (work)
=> 1 day, a woman and a girl can do: 1/60+4/60 = 5/60 =1/12 (work)
Then, the day required for a woman and a girl to complete work: 12 days
5(7 - x).
Step-by-step explanation:
That is 5 multiplied by 7 - x where x is the number.
The answer is C. (1, -3)
We have been given two vectors and , we are to find out the scalar and vector projection of onto
we have and
The scalar projection ofonto means the magnitude of the resolved component of the direction of and is given by
The scalar projection of onto
The Vector projection of onto means the resolved component of in the direction of and is given by
The vector projection of onto
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