3 years ago

A number when divided 6 is diminished by 40

Mathematics

1 answer:

wolverine [178]3 years ago

4 0

Answer:

Let x be the number

given x/6=x-40

x=6(x-40)

x=6x-240

x-6x=-240

-5x=-240

x=-240/-5=48

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A circle is drawn within a square as shown. What is the best approximation for the area of the shaded region? Use 3.14 to approx

puteri [66]

The answer is around 168.56

work :

the side of the square is 28 in

so the diameter of the circle is 28 in, too(look at the picture)

then the radius is 14 (28/2)

the area of the circle is
$(14 \times 14) \times 3.14 = 615.44$

the area of the square is
${28}^{2} = 784$

so the area of the shaded region will be around:
$784 - 615.44 = 168.56$

good luck