You have nine gold coins, but one isn't pure. one has been minted with a cheap alloy, and is known to be heavier than the others. you have a simple balance scale. how do you determine the impure coin with only two weighings?

The capacity of the pitcher shown is 1 gallon. Jane put 9 cups of iced tea into the pitcher. How many more cups of iced tea does she need to fill the pitcher? (1 gallon = 16 cups)

Show me how to solve 2/3 = m/42

Is pie rational or irrational?

2. Andy bought a television that was on sale for $1270.75. If the original price was cut by 35% what was the original price?

Which bottle of grapefruit has the lower unit price 64oz at 3.97 or 48oz at $2.19

What is a better buy 5 minutes of a game for $10 or 7 minutes for $12

An art student wants to make a model of a rectangular classroom. The length of the classroom is 2.4 times its width. The length of the student's model is 42 in. What should the width of the model be? a. 17.5in b. 20.5 in c. 83. 6in d. 100.8in

The length of a rectangle is 4 times the width. The perimeter of the rectangle is 45 inches. What is the area of the rectangle / 9960871/ce166f9f? utm_source=registration

Dominic books with 12 postcards in each book. He has 4 boxes with 20 coins in each box. If he gives 15 post cards to his friends, how many postcards and coins does he have?

Which system of equations has exactly one solution? - 2x-4y = 8 x+y=7 3x+y=-1 x-2y = -2 3x+3y=3 -Ex-by=3 3x-2y=4 -3x+2y=4