Step-by-step explanation:
4x+y=1-(1)
-6x+y=1-(2)
solve simultaneously
10x =0
X=0/10
X=0
solve for X in (1)
4(0)+y=1
0+y=1
y=1-0
y=1
Since the average of 6 tests is 6, and we know that the average is found by dividing the total score by the number of tests, we can just multiply the average by the number of tests to find the total score. Doing this, we get 82 * 6 which simplifies to 492.

what is the width of a rectangle with length 14 Cm and area 161 Cm^2?

Area = width * length
161 = W * 14
W = 161/14 = 11.5
Answer: width of rectangle is W = 11.5 cm
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