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3 years ago

An English instructor asserted that students' test grades are directly proportional to the amount of time spent studying. Lisa

studies 9 hr for a particular test and gets a score of 72. At this rate, how many hours would she have had to study to get a score of 95?

Mathematics

1 answer:

Nady [450]3 years ago

5 0

$\bf \begin{array}{ccll}
hours&score\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
9&72\\
h&95
\end{array}\implies \cfrac{9}{h}=\cfrac{72}{95}\implies \cfrac{9\cdot 95}{72}=h$

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photoshop1234 [79]

Answer:

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A probability is the number of desired outcomes divided by the number of total outcomes

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An English instructor asserted that​ students' test grades are directly proportional to the amount of time spent studying. Lisa

An English instructor asserted that students' test grades are directly proportional to the amount of time spent studying. Lisa