Problem 52
Solve the inequality. Then graph the solution. $$5+r \geq-5$$
Problem 53
Convert the currency using the given exchange rate. Round to the nearest whole number. Convert 55 Canadian dollars to United States dollars. (1 United States dollar \(=1.466\) Canadian dollars)
Problem 54
Convert the currency using the given exchange rate. Round to the nearest whole number. Convert 195 United States dollars to Mexican pesos. \((1 \text { United States dollar }=9.242 \text { pesos })\)
Problem 56
Jesse finished a 200 meter dash in 35 seconds. Let \(r\) represent any rate of speed in meters per second faster than Jesse's. a. Write an inequality that describes \(r .\) Then graph the inequality. b. Every point on the graph represents a rate faster than Jesse's. Do you think every point could represent the rate of a runner?
Problem 58
Evaluate the expression for the given value of the variable. (Lesson 1.1) $$2 x\quad when\quad x=3$$
Problem 58
Mercury has the lowest melting point of any metallic celement, \(-38.87^{\circ} \mathrm{C} .\) Let \(p\) represent the melting point in degrees Celsius of eany other metallic element. Write an inequality that describes \(p\)
Problem 59
Solve the equation. (Lessons 3.1, 3.2) $$x+17=9$$
Problem 60
Use the temperature conversion formula \(F=\frac{9}{5} C+32,\) where \(F\) represents degrees Fahrenheit and \(C\) represents degrees Celsius. Solve the temperature formula for \(C .\)
Problem 66
Solve the inequality. Then graph the solution. $$9 \geq-15+x$$
Problem 69
Find the quotient. $$ -8 \div 2 $$