Engines make up 25% of Denise's collection of 12 miniature train engines and boxcars. After Denise added new engines, her collection was 50% engines. How many engines did she add?

Solve for x: x + = 2x

Fourteen times three plus 12 divid four in distributive property

Apply the distributive property. Substitute the given value to determine if your answer and the given expression are equivalent. 10 (2c+5) = 1

How the greatest common factor of the numbers 10 and 15 can be used to reduce the fraction 10/15

Which pyramid has a greater volume, and how much greater is its volume? in; 6 in 7 in 3 in. 4 in. The volume of the pyramid on the left is greater by 2 in ... The volume of the pyramid on the left is greater by bin ...

Yolanda's club requires that 60% of the members be present for any vote. If at least 30 members must be present to have a vote, how many members does the club currently have?

Give an example of a positive temperature and a negative temperature that have a difference of 5°F.

5506 divided by 57 with remainder

Find the value of the product. 2 sin (52.5°) sin (97.5°)

A grocery store has a shelf with half-gallon containers of milk. What type of number best represents the total number of gallon? Explain your answer. A. Rational Number B. Interger C. Whole Numbers D. Irrational Numbers