Glass

Trader ordered from the manufacturer 200 cut glass. The manufacturer confirmed the order that the glass in boxes sent a kit containing either four or six glasses. Total sent 41 boxes.
a) How many boxes will contain only four glasses?
b) How many boxes will contain six glasses?

Correct answer:

a =  23
b =  18

Step-by-step explanation:


a+b=41
4a + 6b = 200

a+b=41
4·a + 6·b = 200

a+b = 41
4a+6b = 200

Pivot: Row 1 ↔ Row 2
4a+6b = 200
a+b = 41

Row 2 - 1/4 · Row 1 → Row 2
4a+6b = 200
-0.5b = -9


b = -9/-0.5 = 18
a = 200-6b/4 = 200-6 · 18/4 = 23

a = 23
b = 18

Our linear equations calculator calculates it.



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