Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Elisa and her two friends went out to dinner. Each of them ordered a meal worth $10. Afterwards, they each had a scoop of the same kind of ice cream. If the $45 Elisa had was enough to pay for everything, what was the cost of a scoop of ice cream?

### Response:
 Jumla ya gharama ya chakula ilikuwa $10 + $10 + $10 = $30.
$15 iliyobaki ililipwa kwa ajili ya ice cream.
$15 / 3 = $<<15/3=5>>5