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dsp73
2 years ago
6

On a certain hot​ summer's day, 696 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for

adults. The receipts for admission totaled $1298.75. How many children and how many adults swam at the public pool that​ day?
Mathematics
1 answer:
mart [117]2 years ago
5 0

Answer:

i dont know

Step-by-step explanation:

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PLEASE HELP!
IrinaVladis [17]

Answer:

Step-by-step explanation:

<h3>Sphere:</h3>

1) a) r =  7 cm

 \sf \boxed{\text{Volume of sphere=$\dfrac{4}{3}\pi r^3$}}

                             \sf =\dfrac{4}{3}*3.14*7*7*7\\\\= 1436 \ cm^3

 \sf \boxed{\text{\bf Surface area of sphere = $4\pi r^2$}}

                                           = 4*3.14 * 7 * 7

                                           = 615.44 cm²

b) r= 8.4 cm

     Volume = \dfrac{4}{3}\pi r^3

                  \sf =\dfrac{4}{3}*\dfrac{22}{7}*8.4*8.4*8.4\\\\= 2483.7 \ cm^3

   Surface area = 4*3.14*8.4*8.4

                         = 887.04 cm²

<h3>Hemisphere:</h3>

      a) r = 6 cm

     \sf \boxed{\text{\bf Volume of hemisphere =$\dfrac{2}{3} \pi r^3$}}

                                                \sf =\dfrac{2}{3}*3.14*6*6*6\\\\= 452.16 \ cm^3

        \sf \boxed{\text{\bf Surface area of hemisphere=3 \pi r^2}}\sf \boxed{\text{\bf Surface area of hemisphere = $3 \pi r^2$}}

                                                            = 3 * 3.14 * 6 * 6

                                                             = 339.12 cm²

                                                           

                       

3 0
2 years ago
Justin horse weighs 600 kilograms. How much does it weigh in grams
Art [367]
600 k (Kilograms to grams is:
 600000 g (grams)
3 0
3 years ago
Read 2 more answers
Graph the ellipse with equation x squared divided by nine plus y squared divided by sixteen = 1
gladu [14]
X²/9 + y²/16 = 1

The general for mula of an ellipse is:

(x-h)²/a²  + (y-k)²/b² = 1. Since h = k = 0, this ellipse
x²/9 + y²/16 = 1
passes by the center O. (Note that a = 3 and b = 4)

Moreover sin b>a  so the majore axis is (on the y-axis) and a the minor axis (on the x-axis) [Its shape is as a vertical egg].

On a system of perpendicular axis that intercept in O., take on the x-axis 2 points A & B with respective coordinate A(3.0) and B(-3,0)
On the y-axis your report A'(0,+4) and B'(0,-4). So you have the vertex of the ellipse, then it's easy to draw it

6 0
3 years ago
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Describe four different subsets of a real numbers.
Vadim26 [7]

Answer:

Step-by-step explanation:

Natral whole rational irrational

7 0
3 years ago
Of the 36 students in the book club .five ninths Of the students prefer adventure books to historical books. How many of the stu
Effectus [21]
You have to make a tape diagram and divide it in to 9 parts because it is 5 out of 9 then you will make a bracket pointing to only 4 parts of the tape diagram then you do 36/9 and it will equal 4 so put 4 in to each part and so 4 x 4 is 16 so the answer is 16 people prefer historical books
8 0
3 years ago
Read 2 more answers
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