Strawberries 80646

Mom and grandma went shopping at the market. Mom bought 2 kg of strawberries and 3 liters of blueberries and paid 250 CZK. Grandma bought 1 kg more strawberries and 0.5 l fewer blueberries than mom and paid 45 CZK more than her. How much did 1 kg of strawberries and 1 liter of blueberries cost?

Correct answer:

a =  65 Kc/kg
b =  40 Kc/l

Step-by-step explanation:

2 a+3 b=250 (2+1) a+(30.5) b=45+250  2a+3b=250 3a+2.5b=295  Pivot:Row1Row2 3a+2.5b=295 2a+3b=250  Row232 Row1Row2 3a+2.5b=295 1.33b=53.33  b=1.3333333353.33333333=40 a=32952.5b=32952.5 40=65=65 Kc/kg  a=65 b=40



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