a sweet contains sugar syrup up to 30% volume.
1) find approximately how much syrup would be found be fould in 45 sweets, each shaped like a spherical with diameter 2.8cm.
2) find the surface area of 1 sweet.
3) which mathematical concept is used above.
4) what is the value?

Question

a sweet contains sugar syrup up to 30% volume.
1) find approximately how much syrup would be found be fould in 45 sweets, each shaped like a spherical with diameter 2.8cm.
2) find the surface area of 1 sweet.
3) which mathematical concept is used above.
4) what is the value?

bhumi273 · Answer

@Michele_Laino @Mimi_x3 @butterflydreamer @mathslover

anonymous · Answer

Find the volume of 1 sweet sphere.

$V = \dfrac{4}{3} \pi r^3$

2.8 / 2 = 1.4, so the radius is 1.4, plug that in:

$V = \dfrac{4}{3}(3.14)(1.4^3)$

Can you simplify that?

bhumi273 · Answer

yeh...

michele_laino · Answer

Hint:
If V is the volume of a sweet, then  total volume is 45*V

bhumi273 · Answer

ok...

michele_laino · Answer

Hint:
the surface area of a sphere of radius R is given by the subsequent formula:
$$S = 4\;\pi \;{R^2}$$

anonymous · Answer

Okay, what do you get? @bhumi273

bhumi273 · Answer

SOME... 40.7