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Greeley [361]
3 years ago
7

there are 250 people in a museum. 2/5 of the 250 people are girls. 3/10 of the 250 people are boys. the rest of the 250 people a

re adults. work out the number of adults in the museum
Mathematics
2 answers:
Akimi4 [234]3 years ago
7 0
His is:-

250 - 2/5 *250 - 3/10 * 250

= 250 - 100 - 75

= 250 - 175

= 75 answer
MA_775_DIABLO [31]3 years ago
3 0
He is 75, simple math shows...
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Answer:

123.5 m^2

Step-by-step explanation:

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Hatshy [7]
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Solution..
---------------

Substitute for x=y+3 in the second equation...

2x+y = 9

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Substitute for y=1 in the first equation...

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Am sure the answer is quite evident now...
3 0
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nexus9112 [7]

Answer:

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