Solve the equation - 3=7+z/2

A hot iron ball of mass 200 g is cooled to a temperature of 22°C. 6.9 kJ of heat is lost to the surroundings during the process. What was the initial temperature of the ball? (ciron = 0.444 J/g°C)

Is 18-3 (2p + 4) - 3p equivalent to 3 (2 - 3p)

Solve the following Word Problems: 1. Marietta was given a raise of $0.75 per hour, which gave her a new wage of $12.25 per hour. Write and solve an equation to determine Marietta's hourly wage before her wage.

Given: a triangle with sides 40 feet, 50 feet, and 60 feet. On a drawing, 1 inch = 10 feet. How long are the sides of the triangle on the drawing?

Megan bought 8 plastic discs. Each disc weighs 0.58 ounces. How much do the 8 plastic discs weigh in all?

Which best describes a way in which Naturalism differs from Realism? A. Characters are idealized. B. The effect of society and heredity on character is explored. C. The importance of nature is emphasized over that of humanity. D.

Find the equation of the line that cuts the y axis at y=-9 and whose slope is 1/7.

Math is often used to determine the correct dosage for medications; create scale drawings; graph data from scientific investigations. Given this information, what conclusion can be made about mathematics? A.

A car is 200 km from its destination after 1 hour and 80 km from its destination after 3 hours.

Consider the equation x-3=5. a. Multiply both sides of the equation by a constant, and show that the solution set did not change. Now, multiply both sides by x. b. Show that x=8 is still a solution to the new equation.