Respuesta :

Answer:

5

Step-by-step explanation:

7.5/3= 2.5

2.5 x 2 = 5

alfredjiang2010
Jake can make 5 airplane models in 7 and 1/2 hours. If he can make 2 airplane model in 3 hours, you x2 the time and get 4 airplane model in 6 hours and then you divide 2 airplane model with 2 and get 1 so lastly you add 2+2+1 which is 5.

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