Вычислите: 1) 1/2×2/3×3/4-2/3×3/4×4/5-3/4×4/5×5/6

Mathematics

1 answer:

malfutka [58]2 years ago

4 0

Answer:

= -13 / 20

Step-by-step explanation:

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He length of a rectangle is three times its width. The perimeter of the rectangle is at most 112 cm.

g100num [7]

The equation relating length to width
L = 3W
The inequality stating the boundaries of the perimeter
LW <= 112
When you plug in what L equals in the first equation into the second equation, you get
3W * W <= 112
evaluate
3W^2 <= 112
3W <= $4 \sqrt{7}$
W <= $\frac{4 \sqrt{7} }{3}$ cm