Question

Rob is saving to buy a new MP3 player for every $16 he earns babysitting he saved $5 on Saturday rob earned $80 babysitting how much money did he save

Answer 1

He saved $25.

Explanation:

• If Rob saves $5 for every $16 he earns, he is saving the folowing franction of his income:
  `(5)/(16) =0,3125=31,25\%`.
• Then if his income equals $16, he will save
  `\$16*{0,3125}=\$5`.
• If his income is $80, he will save
  `\$80*{0,3125}=\$25`
• Another way to understand this problem would be to think that
  `\$80=5*{\$16}`. Then, receiving $80 is the same as receiving 5 times $16. If he saves $5 for every $16 he receives, he would save 5 times $5 = $25.