Karen will earn $178 for 8 hours work.
Given:
Karen works for 85 hours ⇒ she earns $1891.25
Question:
How much does Karen earn for 8 hours?
To solve this problem, we will use proportions method. It is by stating the ratios as fractions, setting the two fractions equal to each other and then cross-multiplying.
[tex]\boxed {\frac{85}{1891.25} = \frac{8}{x} } \\\boxed {x = \frac{1891.25 \times8}{85} }\\\boxed {x = \frac{15130}{85} }\\\boxed {x= 178 }[/tex]
So, Karen will earn $178 for 8 hours.
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Keywords: proportions methods, math word problem, division, multiplication