Question

Sam started a dog-walking business. He charges $5 for each dog for a thirty-minute walk. How much dor

Sam carn per hour walking just one dog?

Christie sells lemonade in her driveway. She spends $20 for supplies: lemons, sugar, and cups. With these
upplies, she can make enough lemonade to sell 100 cups of lemonade. If she charges a quarter per cup,
ow much profit will she make?

Answer 1

Answer:
`\$10,\ \$5`

Explanation:

(a) Given

Sam charge $5 for each dog for a thirty minute walk

For an hour which is double the thirty minutes, it must be double of the same charge.

`\Rightarrow 2* 5=\$10`

(b)Given

With $20, Christie sells 100 cups of lemonade with a quarter per cup charge

For 100 cup, she generate a revenue of

`\Rightarrow (1)/(4)* 100\\\\\Rightarrow \$25`

So, she earns
`25-20=\$5` that is , her profit is
`\$5`