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34kurt
3 years ago
12

25% of 40 emails were spam how many emails were spam

Mathematics
1 answer:
mixer [17]3 years ago
7 0
10. 25% of 40 or 0.25 times 40 gives you 10.

also 25% = 1/4
so 1/4 x 40 = 10
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Please help with this!
Klio2033 [76]

Answer:

  • y = 8
  • RS = 51
  • ST = 29

Step-by-step explanation:

(a) You use the fact that the lengths RS and ST total the length RT.

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  (6y+3) +(3y+5) = 80 . . . . . substitute the given values

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___

(b) Now, the value of y can be substituted into the expressions for RS and ST to find their lengths.

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  ST = 29

___

<em>Check</em>

  RS +ST = 51 +29 = 80 = RT . . . . the numbers check OK

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