Which expression can be substituted for x in the top equation of the following system to solve the system by substitution? 2x-7y=15 x+4y=6

What is the degree measure of a semicircle

True or false An undefined term cannot be used in a theorem.

What is 4*-3+12=180 equal

What is the correct first step for solving this equation - 5 (4x-7) + 8=3x

The partial factorization of x2 - x - 12 is modeled with algebra tiles. Which unit tiles are needed to complete the factorization? 3 negative unit tiles 3 positive unit tiles 4 negative unit tiles 4 positive unit tiles

Steve has 2 and one half cups of flour for one of his recipes requires one 8th cup of flour, what is the maximum number of times Steve can complete the recipe.

A parallelogram has an area of 37.72 m2 and a height of 4.6 m. How long is the base of the parallelogram?

How many of these equations have the solution x = 12 x = 12 ? x - 2 = 10 x - 2 = 10 x 2 = 24 x 2 = 24 10 - x = 2 10 - x = 2 2x1=25 2x-1=25

A city park is opening a new swimming pool. You can pay a daily entrance fee of $3 or purchase a membership for the 12 week summer season for $82 dollars and pay only $1 per day to swim.

In a statistics class, 10 scores were randomly selected with the following results (mean = 71.5) : 74, 73, 77, 77, 71, 68, 65, 77, 67, 66. What is the range?