Respuesta :

Haruka123

Answer:

a= 17.5 r= 6 2/9 b=4 2/7

Step-by-step explanation:

Please give brainliest

Answer:

1) 17.5

Step-by-step explanation:

1) 7/2 = a/5. Remember doing the cross multiplication... here is how you do it. 7          a

–    =   —

2         5

cross multiply 7*5=2*a

35=2a divide two each side

a = 17.5

Now, try it on your own for 2 and 3

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