Question

Zaniyah and her brother both start saving money in their piggy bank. Each begins with zero dollars. For every four dollars that Zaniyah saves in her piggy bank, her brother saves seven dollars in his piggy bank. What is a ratio to describe the money in Zaniyah’s piggy bank to the money in her brother’s piggy bank?

Answer 1

The ratio to describe the money in Zaniyah's piggy bank to the money in her brother's piggy bank is 7:4.

Step-by-step explanation:

Zaniyah saves $4 for every $7 her brother saves. To find the ratio, we can set up a proportion using the amounts saved by each. Let x be the amount Zaniyah saves and y be the amount her brother saves. We can write the proportion as:

x/4 = y/7

To simplify, we cross multiply:

7x = 4y

Now we can find a ratio by dividing both sides of the equation by y:

7x/y = 4y/y

7x/y = 4

The ratio to describe the money in Zaniyah's piggy bank to the money in her brother's piggy bank is 7:4.