The ratio of marbles to sticks is 5:8. The ratio of sticks to stones is 5:7. What is the reduced ratio of marbles to stones?

Step-by-step explanation:

Let the marbles = x, sticks = y, stones = z.

Given:

and

Solve for x and z as per above ratios:

Find the ratio:

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question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.