Chapter 1: Problem 2
Write an equation representing the situation if \(p\) is the price of the dinner in dollars. The cost for three dinners plus a \(\$ 5\) tip is \(\$ 32\).
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Chapter 1: Problem 2
Write an equation representing the situation if \(p\) is the price of the dinner in dollars. The cost for three dinners plus a \(\$ 5\) tip is \(\$ 32\).
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Given that \(x=4\) is a solution to $$ 2 j x+z=3 $$ evaluate the expression \(16 j+2 z\).
In Problems \(65-67\), each row of the table is obtained by performing the same operation on all the entries of the previous row. Fill in the blanks in the table. $$ \begin{array}{c|c|c|c|c|c} \hline-2 & -1 & 0 & 1 & 2 & a \\ \hline-1 & 0 & 1 & 2 & 3 & \\ \hline-1 / 2 & 0 & 1 / 2 & 1 & 3 / 2 & \\ \hline 1 / 2 & 0 & -1 / 2 & -1 & -3 / 2 & \\ \hline 3 / 2 & 1 & 1 / 2 & 0 & -1 / 2 & \\ \hline \end{array} $$
In Exercises \(24-27,\) write an expression for the sales tax on car. $$ \text { Tax rate is } 6 \% \text { , price is } \$ 1000 \text { off the sticker price, } \$ p $$
In Exercises \(24-27,\) write an expression for the sales tax on car. $$ \text { Tax rate is } r, \text { price is } 10 \% \text { off the sticker price, } \$ p $$
The equation $$ -x \sqrt{7+x}=2 $$ has two solutions. Are they positive, zero, or negative? Give an algebraic reason why this must be the case. You need not find the solutions.
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