Apples 5

In six crates are 45 kg of apples. Five crates were the same amount, and in the sixth crate were 3 kg more apples. How many kilograms of apples were in each crate?

Final Answer:

a =  7 kg
b =  10 kg

Step-by-step explanation:

5a+b=45
b = a+3

5·a+b=45
b = a+3

5a+b = 45
a-b = -3

Row 2 - 1/5 · Row 1 → Row 2
5a+b = 45
-1.2b = -12


b = -12/-1.2 = 10
a = 45-b/5 = 45-10/5 = 7

a = 7
b = 10

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