Mathematics, 08.09.2021 21:30 erjalinalii
Gold that is 24-karat (24K) gold is pure gold. Gold that is 18 parts gold plus 6 parts other metals is 18-karat (18K) gold. To find the percentage of gold in 18K gold, divide the number of parts gold (18) by the total number of parts metal (24) and multiply by 100%. So, 18/24 0.75, and 0.75 100% 75%. Thus, 18K gold is 75% gold. Find the percentĀ age of gold in 10K gold and 14K gold.
Answers: 3
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Given: ae ā
ce ; de ā
be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that ā³aeb ā
ā³ced, we can show that ā³ ā
ā³ceb by. so, ā cad ā
ā by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
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Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm
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Gold that is 24-karat (24K) gold is pure gold. Gold that is 18 parts gold plus 6 parts other metals...
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