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Questions in Grade High-school

📝 Answered - Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. Let \(m\) represent the number of magazines and \(b\) represent the number of books. Which equation models the situation? A. \(3.95 m+8.95 b=47.65\) B. \(m+b=60.55\) C. \(m+b=47.9\) D. \(8.95 m+3.95 b=47.65\)

📝 Answered - On a line segment, [tex]$U$[/tex] is between [tex]$T$[/tex] and [tex]$V$[/tex]. If [tex]$T U=2 x+5, U V=17$[/tex], and [tex]$T V=3 x+11$[/tex], what is TV? Simplify your answer and write it as a proper fraction, mixed number, or integer.

📝 Answered - The table below shows the proportional relationship between the amount of tea and coffee sold at a cafe. Find the missing values in the table. \begin{tabular}{|c|c|} \hline Tea (Ibs) & Coffee (Ibs) \\ \hline 2 & \\ \hline & 6 \\ \hline 12 & 18 \\ \hline 22 & \\ \hline \end{tabular}

📝 Answered - Evaluate [tex]y^3+4 y z-2 x^2[/tex] when [tex]y=2[/tex], [tex]x=-4[/tex] and [tex]z=1[/tex]

📝 Answered - Evelyn spent the day shopping and made the following purchases: | Item | Cost ($) | | ------- | -------- | | Camera | 66.31 | | Hat | 13.44 | | Parking | 8.00 | | Planner | 9.78 | When Evelyn was done, she checked her account balance and found she had a total of $208.16. How much money was in Evelyn's account to begin with? A. $110.63 B. $305.69 C. $315.47 D. $97.53

📝 Answered - Solve for x. $4(2 x-1)+4 x-4=-32$

📝 Answered - 6. Use your calculator to work out [tex]$5.8^2+7.2^3$[/tex] (a) Write down the full calculator display (b) Write your answer to 1 significant figure

📝 Answered - Select the correct answer. The population of deer in a forest is currently 800 individuals. Scientists predict that this population will grow at a rate of 20 percent per year. Based on this prediction, about how many years will it take for the population to double in size? Use the equation [tex]$P=P_0(1+r)^{ t }$[/tex], in which [tex]$P_0$[/tex] represents the initial population size, [tex]$r$[/tex] represents the growth rate, [tex]$t$[/tex] represents the number of years, and [tex]$P$[/tex] represents the final population size. A. 3.8 years B. 5.0 years C. 0.3 year D. 1.8 years

📝 Answered - The equation $4[x+2(3 x-7)]=22 x-65$ was simplified to write the equivalent equation of $28 x-56=22 x-65$. What is the solution of the equation $4[x+2(3 x-7)]=22 x-65$? A. $\frac{3}{2}$ B. $-\frac{2}{3}$ C. $\frac{2}{3}$ D. $-\frac{3}{2}$

📝 Answered - Solve the equation. [tex]$16+19=-5(6 x-7)$[/tex]