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Answer:
Length = 6 cm and width = 4 cm.
Step-by-step explanation:
Let the width be x, then the length is x + 2 cm and its area = x(x + 2).
The new width and length are x + 4 and x + 6, and the new area is
(x + 4)(x + 6).
So we have the equation:-
(x + 6)(x + 4) = x(x + 2) + 56
x^2 + 10x + 24 = x^2 + 2x + 56
10x - 2x = 56 - 24
8x = 32
x = 4 cm = width
and length = 4 + 2 = 6 cm
9 times 9 = 81 6 times 6 =36 so 36 plus 18
Answer:
c) 1
Step-by-step explanation:
(12·g)-h
g=
and h=
; substitute back in the equation
(12·
) -
; multiply inside the parenthesis
(3)-
; multiply and notice the same denominator
-
=
= 1; subtract the fractions