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2 years ago

At a water park, 4 out of 20 tickets sold were child tickets. What percentage of the tickets were child tickets?

Mathematics

2 answers:

jeyben [28]2 years ago

5 0

Answer:

20%

Step-by-step explanation:

Oxana [17]2 years ago

3 0

Answer:

20%

Step-by-step explanation:

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How many solutions are there to the equation 10= a + b + c with each of a, b, and c a whole number greater than or equal to zero

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If a is fixed and b,c are unknowns then the equation b+c=10-a has 11-a solutions. They are pairs (b,c): (0,10-a), (1,9-a), (2,8-a), ... (10-a,0). As a runs from 0 to 10 we have total number of solutions (11-0)+(11-1)+...(11-1)=11+10+...+1=(1+11)*11/2=66.

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Answer:

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Step-by-step explanation:

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Read 2 more answers

The figure the Floor Plan of a balcony ,it consists of △ABC and semi-circle ,

ivanzaharov [21]

Step-by-step explanation:

(a) In right triangle ABC,

$AC^2 =AB^2 +BC^2 \\ = {12}^{2} + {5}^{2} \\ = 144 + 25 \\ = 169 \\ AC = \sqrt{169} \\ \therefore \: AC = 13\: m \\ \\ AC \: is \: the \: diameter \: of \: semicircle \\ \therefore \: r = \frac{1}{2} \times AC = \frac{1}{2} \times 13 = 6.5 \: m \\ Circumference \:of \:semi-circle \\ C = \pi \: r = 3.14 \times 6.5 = 20.41 \:m\:$

Perimeter of Balcony = 12 + 5 + 20.41 = 37.41 m

(b) Area of balcony

$=\frac{1}{2}\times 12\times 5+\frac{1}{2} \pi r^2 \\\\=\times 6\times 5+\frac{1}{2} \times 3.14\times (6.5)^2 \\\\=30+\frac{1}{2} \times 3.14\times42.25\\\\= 30+\frac{1}{2} \times 132.665\\\\= 30 + 66.3325\\\\= 96.3325 \:m^2 \\\\\approx 96. 33\:m^2$

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3 years ago

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Answer:

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Step-by-step explanation:

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