Most of the metals we use are alloy metals combined with other materials. Brass is an alloy made of copper and zinc. This table shows the parts of copper and zinc used to make a batch of brass.
Copper, in
pounds
16
48
Zinc, in
pounds
4
12
64
16
Determine if the following statements are true or false and select the appropriate column.
True
False
Statement
In every batch of brass, 1/5 of the brass is made of zinc.
Every 1 pound of zinc requires 3 pounds of copper.
There is 1 pound of zinc in every 5 pounds of brass.
There is 4 times as much copper as zinc.
There are 8 pounds of zinc for every 24 pounds of copper

What is the range for 31,39,29,34,37,24,36,33,34,28

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Runners run around the school's football field. the cross country coach determines that the width of the field is seventy yards shorter than the length. part a write an expression that represents the perimeter of the football field. let x represent the length of the football field. include parentheses in your expression. next, write an equivalent expression that does not include parentheses. what property or properties did you use to simplify? explain. part b the cross country coach later determines that the length of the football field is 120 yards. all students must run five laps. using your answer from part a, determine the actual number of yards that each athlete must run in the tryouts. in order to make the team, students must complete the laps in 6 minutes. how quickly must they run each lap?