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Cara put [tex]$18 into her savings account last week. This is 90% of her earnings from babysitting. How much did she earn babysitting?
To find out how much Cara earned from babysitting, we know that she put [tex]$18 into her savings account and this amount represents 90% of her total earnings from babysitting.
Let's denote Cara's total babysitting earnings as \( x \).
Given:
\[ 0.90 \times x = 18 \]
To solve for \( x \), we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 0.90:
\[ x = \frac{18}{0.90} \]
When we perform this division, we get:
\[ x = 20 \]
Therefore, Cara earned \( \$[/tex]20 \) from babysitting.
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