Kim and her brother are saving money each week. Kim has $500 in her account and saves $15 per week. Her brother has $800 in his account and saves $10 per week. How many weeks will it take for both siblings to have the same amount of money in their account?

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.