Answer: 1500 white tennis balls and 3000 yellow tennis balls
Explanation:
The tournament will use a total of 3000 yellow tennis balls and 1500 white tennis balls. This is because the ratio of white to yellow tennis balls is 1:2, which means that for every one white ball, two yellow balls will be used. To determine the number of yellow balls, we can divide the total number of balls by the sum of the ratio terms which is 1+2=3. Then, we multiply the result by the second term in the ratio which is 2/3. This gives us:
4500 / 3 = 1500 (white balls)
4500 * (2/3) = 3000 (yellow balls)
Therefore, there will be 1500 white tennis balls and 3000 yellow tennis balls used during the tournament.