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S4. In the figure given below, the green and the pink
shapes are squares and rectangles, respectively. If
the side of each small square is 2.5 units and that
of each big green square is 8 units, answer these
questions.
(a) Find the total area of the pink regions.
(b) Find the total area of the green
regions.
(c) Find the difference between
the total area of the
squares
and the rectangles.
Answers
Answered by
4
Answer:
Multiply the second equation with -1 then it will become - x - 2y ≥ - 3. Add the equations. You will get y > -1.
2. If the price of an item is decreased by 10% and then increased by 10%, the net effect on the price of the item is
A. A decrease of 99%
B. No change
C. A decrease of 1%
D. An increase of 1%
Answer: C
If a certain number is increased by x% then decreased by x% or vice versa, the net change is always decrease. This change is given by a simple formula − (x⁄10)2 = − (10⁄10)2 = −1 %. Negitive sign indicates decrease.
Answered by
2
Step-by-step explanation:
(a) 80 sq units
(b) 89 sq units
(c) 9 sq units
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