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Brilliant_brown [7]
3 years ago
8

491 people used the pool. It costs $1.25 for kids and $2.25 for adults. The total cost was $757.75. How many kids and how many a

dults used the pool?
Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer:

  • 347 kids
  • 144 adults

Step-by-step explanation:

Let x represent the number of adults using the pool. Then 491 -x is the number of kids using the pool, and the total revenue is ...

  2.25x +1.25(491 -x) = 757.75

  x +613.75 = 757.75 . . . . . . . . . eliminate parentheses, collect terms

  x = 144 . . . . . . . . . . . . . . . . . . . . subtract 613.75; number of adults

  491-x = 347 . . . . . number of kids

347 kids and 144 adults used the pool.

IgorC [24]3 years ago
5 0

Answer:

144 adult and 347 kids

Step-by-step explanation:

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Department started out with 100 pencils and 200 pens during the lat quarter of this year they lost 4% of the pens and 2% of the
o-na [289]

Answer:

The remaining number of the pencil   =  98

The remaining number of the pens  =  192

Step-by-step explanation:

Here, according to the question:

The number of pencils at the starting at the quarter = 100

The percentage of the lost pencil over the year = 2%

Now, calculating the lost pencil, we get:

2% of 100 = \frac{2}{100}  \times 100 = 2

⇒The number of lost pencil over the year = 2

So,Number of remaining Pencil = Total pencil - Number of pencil lost

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The percentage of the lost pens over the year = 4%

Now, calculating the lost pens, we get:

4% of 200 = \frac{4}{100}  \times 200 = 8

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So,Number of remaining Pens = Total pens - Number of pens lost

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Hence, the remaining number of the pencil   =  98

And and the remaining number of the pens at the end of the year  = 192

6 0
2 years ago
Can help me complete this problem please :c
motikmotik

Answer:

A = \dfrac{7}{2}\pi~cm^2

Step-by-step explanation:

There is a formula for the area of a sector given the radius and the angle measure.

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r = radius

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