document.write( "Question 355436: a sugar dud has 30 less than twice as many calories as a krunchy krum. if 5 sugar duds have the same number of calories as 8 krunchy krums, how many calories are in each? \n" ); document.write( "

Algebra.Com's Answer #253857 by robertb(5830) $\"\"$ $\"About$

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Let s = # calories in a sugar dud
\n" ); document.write( "k = # calories in a krunchy krum. Then from the given,
\n" ); document.write( " $\"s+=+2k-30\"$ . From the second sentence, we also know that $\"5s+=+8k\"$ .
\n" ); document.write( "Thus by direct substitution, $\"5%282k-30%29+=+8k\"$ .
\n" ); document.write( " $\"10k-150+=+8k\"$ ,
\n" ); document.write( " $\"2k+=+150\"$ ,
\n" ); document.write( " $\"k+=+75\"$ , the number of calories in a krunchy krum. This makes $\"s+=+120\"$ calories for a sugar dud. \n" ); document.write( "

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