Answer: Mrs Tan paid $9 for each bowl.
Step-by-step explanation:
Let's first assume the cost of each cup is x, then the cost of each bowl is 3x (since each bowl costs 3 times as much as each cup). According to the problem, Mrs Tan paid $39 for 4 cups and 3 bowls. So we can set up the following equation:
4x + 3(3x) = 39
This simplifies to:
4x + 9x = 39
13x = 39
x = 3
So one cup costs $3.To find out how much each bowl costs, we can simply substitute x = 3 into the expression 3x:
3(3) = 9
So each bowl costs $9.Therefore, Mrs Tan paid $9 for each bowl.