In a bakery

In a bakery, a bun costs 2 CZK more than a roll. Petr bought 4 buns and 8 rolls and paid exactly 62 CZK.
a) Calculate the price of one bun in CZK.
b) Calculate in CZK how much Petr would pay to buy 2 buns and 2 rolls.
c) Determine how many rolls Petr could buy for 54 CZK.

Final Answer:

a =  6.5 Kc
x =  22 Kc
y =  12

Step-by-step explanation:

a=2+b 4 a+8b=62  4 a+8 b=62  ab=2 4a+8b=62  Pivot:Row1Row2  Row241 Row1Row2 3b=13.5  b=313.5=4.5 a=4628b=4628 4.5=6.5  a=213=6.5 b=29=4.5
x=2 a+2 b=2 6.5+2 4.5=22 Kc
y=54/b=54/4.5=12



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