Answer:
square numbers are numbers raised up to the power of two in essence the number multiplied by it self
7×4=28
now subtract:
50-28=22
there are 22 marbles left in the can
hope this helped
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given:
= cost of Brazilian coffee in mixture
= cost of Venezuelan coffee in mixture
= cost of mixture
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Now I can rite these equations:
(1)
(2)
Multiply both sides of (2) by and
subtract from (1)
(1)
(2)
and, since
288 kg of Brazilian coffee and 96 kg of Venezuelan coffee are needed
