Let's represent Olivia's allowance as x and Sylvia's allowance as y.
According to the given ratio, we have the equation:
x/y = 2/3
We know that Sylvia gets $21, so we can substitute y with 21 in the equation:
x/21 = 2/3
To find the value of x, we can cross-multiply:
3x = 2 * 21
3x = 42
Dividing both sides by 3:
x = 42/3
x = 14
Therefore, Olivia got $14.
Best friends, Olivia and Sylvia both get a weekly allowance, Olivia and Sylvia’s allowances are in the ratio 2:3 if Sylvia gets $21 one week how much did Olivia get use a tape diagram to help organize your thinking
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