In a chemical compound there are three parts zinc for every 16 parts copper by mass. A piece of the compound contains 320 g of copper. Write and solve an equation to determine the amount of zinc in the chemical compound.

You have a $20 dollar sign to spend on taxi fare. The ride costs 5 plus $2.50 dollar sign per kilometer. Write an inequality to determine the distance in kilometers you can ride for 20.

Find the value of d that makes the equation true: d - 8 = 5. d = 10 d = 11 d = 12 d = 13

Abdul invested his savings in two investment funds. The amount he invested in Fund A was twice as much as the amount he invested in Fund B. Fund A returned a 8% profit and Fund B returned a 2% profit.

Ryan meausures the perimeter of his square painting so he can make a wood frame find the perimeter of the painting in centimeters

1 Find the base area of a prism with height 10 cm and volume 280 cm. Find the height of a rectangular prism with length 10 cm and width 8 cm if its volume is 560 cm?. Find the height of a cylinder with radius 8 cm and volume 120 cm?.

Solve the equation. check your ans.

In 2015 there were approximately 33,300 firearm fatalities (homicide and suicides) Express the quality in deaths per hour

What is the general solution for (cosX + sinX) (1 - 2sinX) = 0

Sam used 2 gallons of gas to drive 50 miles and 4 gallons of gas to drive 100 miles. Is this a proportional relationship? Explain your reasoning.

The quotient of a number and 5, less 10, is 3