Birthday party

For her youngest son's birthday party, the mother bought 6 3/4 kg of hotdogs and 5 1/3 dozen bread rolls. Hotdogs cost 160 per kilogram, and a dozen bread rolls cost 25. How much did she spend in all?

Correct answer:

x =  1213 13 = 3640/3

Step-by-step explanation:

a=643=6+43=46 4+3=424+3=427=643=6.75 b=531=5+31=35 3+1=315+1=316=5315.3333  x=a 160+b 25=427 160+316 25=33640=121331=1213.3333

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