After raining for LaTeX: \frac{3}{4}3 4 of an hour, a rain gauge is LaTeX: \frac{2}{5}2 5 filled. If it continues to rain at that rate for 15 more minutes, what fraction of the rain gauge will be filled? To help answer this question, Diego wrote the division equation LaTeX: \frac{3}{4}\div\frac{2}{5}=?3 4 ÷ 2 5 = ?. Explain why this equation does not represent the situation.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Astore is having a sale in which all items are reduced by 20 percent. including tax, jennifer paid $21 for a pair of shorts. if the sales tax is 5 percent, what was the original price of the shorts

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?