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Fofino [41]
3 years ago
5

Need help with number 6

Mathematics
1 answer:
12345 [234]3 years ago
5 0

Answer: 172

Explanation:

<u>Mystery</u>          <u>Science Fiction</u>          <u>Biographies</u>

   4x                  3x

                                       4y                       5y

Science Fiction = 48

3x = 48      ⇒    x  = 16          

4y = 48      ⇒     y  = 12


Mystery: 4x   = 4(16)   = 64

Biographies: 5y   = 5(12)   = 60


Mystery + Science Fiction + Biographies = Total

     64     +          48            +         60        = Total

                                                         172    = Total

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marusya05 [52]

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Step-by-step explanation:

The null hypothesis states that there is no difference in the test which is denoted by H_o. However, the sign of null hypothesis is denoted by the signs of = or ≥ or ≤.

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