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quester [9]
3 years ago
10

How do I do these please help

Mathematics
1 answer:
AfilCa [17]3 years ago
6 0
Your equation for number one is 600,788,188/760,507,625 = x/100
After cross multiplying you will get 760,507,625x = 60,078,818,800
Then you will divide by <span>760,507,625 to isolate the varible to get 78.99 = x.

Your equation in number two is 80/143 = x/100 because when you subtract 143  by 63 you get 80, the amount of males in the room. Then you cross multiply to get, 143x = 8000. Then you would divide both sides by 143 to isolate the varible to get 55%</span>
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On a certain hot summer's day, 263 people used the public swimming pool. The daily prices are $1.25 for children and $2.50 for a
Elenna [48]

Answer:

The number of children = x = 176

The number of Adults = y = 87

Step-by-step explanation:

Let us represent

The number of children = x

The number of Adults = y

On a certain hot summer's day, 263 people used the public swimming pool.

x + y = 263.... Equation 1

x = 263 - y

The daily prices are $1.25 for children and $2.50 for adults. The receipts for admission totaled $437.50.

$1.25 × x + $2.50 × y = $437.50

1.25x + 2.50y = 437.50.....Equation 2

We substitute 263 - y for x in Equation 2

1.25(263 - y) + 2.50y = 437.50

328.75 - 1.25y + 2.50y = 437.50

- 1.25y + 2.50y = 437.50 - 328.75

1.25y = 108.75

y = 108.75 ÷ 1.25

y = 87

Solving for x

x = 263 - y

x = 263 - 87

x = 176

Therefore:

The number of children = x = 176

The number of Adults = y = 87

8 0
2 years ago
HELLO I FORGOT THIS ONE PLEASE HELP
kow [346]

Answer:

No problem it's just C

4 0
3 years ago
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Celeste wants to have a haircut and permed and also go to lunch. she knows she will need $77. the perm will cost twice as much a
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$48 is the cost of the perm
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2 years ago
Lisa's dog has 4 squeaky toys. Two thirds of the dog's toys are squeaky toys. How many dog toys does Lisa's have in all?
viva [34]
.  Lisa's dog has 4 squeaky toys   
.  the squeaky toys are 2/3 of all the dog's toys

.  let <em>x</em> be number of all dog toys

<em>make an equation</em>
(2/3)<em>x</em> = 4   <em>← solve</em>
x=6

<em>check</em>
2/3 × 6 = 4

<u>Lisa's Dog has 6 toys in all</u>



3 0
3 years ago
Simplify completely ((x2-4x+4)/(x2+10x+25)) x ((x+5)/(x2+3x-10)) ...?
vladimir1956 [14]
Hope I wrote this clearly

3 0
2 years ago
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