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Marina CMI [18]
3 years ago
6

Tickets to a play are priced as follows:

Mathematics
2 answers:
fomenos3 years ago
4 0

She has to pay £100.98.

Step-by-step explanation:

Given,

The cost of adult ticket = £12

The cost of child ticket = £6

10% booking fee will be added.

2% will be added if she is paying by credit card.

Number of adult = 6

Number of child = 3

To find the cost of ticket if she uses her credit card.

Formula

If a% increases on b the value will be = b×\frac{100+a}{100}

Total cost of the ticket =  £12×6+£6×3 = £90

After 10% booking fee = £90×\frac{110}{100} = £99

After paying by her credit card 2% = £99×\frac{102}{100} = £100.98

Hence,

She has to pay £100.98.

Aneli [31]3 years ago
3 0
£72 plus £18 equals £90 and 10% makes it £81.00 and with the 2% it’s £82.62
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Find the area and perimeter. Stuck on this one need help
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  • perimeter: 44 units

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  A = (1/2)(b1 +b2)h

  A = (1/2)(12 +7)(12) = 114 . . . square units area

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8 0
2 years ago
Which expression represents the volume, in cubic units, of the composite figure?
Kipish [7]

The missing figure is attached

The expression represents the volume in cubic units of the composite figure is (Four-third)π(10)³ + π(10)²(28) ⇒ 1st answer

Step-by-step explanation:

The figure consists of

  • Two hemispheres
  • A cylinder

The volume of the hemisphere = \frac{2}{3}\pi r^{3} , where r is its radius

The volume of the cylinder = πr²h, where r is its radius and h is its height

∵ The diameter of the hemisphere s and the cylinder is 20 units

∵ The radius = \frac{1}{2} diameter

∴ The radius = \frac{1}{2} × 20 = 10 units

∵ The volume of a hemisphere = \frac{2}{3} πr³

∵ r = 10

- Substitute r by 10 in the rule

∴ The volume of a hemisphere = \frac{2}{3} π(10)³

∵ The volume of the cylinder = πr²h

∵ h = 28 and r = 10

- Substitute h by 28 and r by 10 in the rule

∴ The volume of the cylinder = π(10)²(28)

∵ The volume of the figure = 2(volume of a hemisphere) +

   volume of the cylinder

∴ The volume of the figure = 2( \frac{2}{3} )π(10)³ + π(10)²(28)

∵ 2 × \frac{2}{3} = \frac{4}{3}

∴ The volume of the figure = \frac{4}{3} π(10)³ + π(10)²(28)

The expression represents the volume in cubic units of the composite figure is (Four-third)π(10)³ + π(10)²(28)

Learn more:

You can learn more about the volume of figures in brainly.com/question/12497249

#LearnwithBrainly

7 0
3 years ago
Read 2 more answers
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