How do you know that substitution give a you the answer to a system of equations

List all of the possible rational zeros of q (x) = 6x^5+x^3-3

Linda used a triple beam balance to find the mass of three identical math textbooks. If the total of the three textbooks is 654 grams, what is the mass of each textbook?

Maria looked at the architectural plan of a room with four walls in which the walls meet each other at right angles. The length of one wall in the plan is 13 inches. The length of the diagonal of the floor of the room in the plan is approximately 15.

Shoe me the formula to get 63 divided by 0.9

An angle measures 12 degrees less than three times its supplement. Find the measure of the angle.

On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and curves up and increases in quadrant 1. What are the domain and range of the function on the graph? The domain includes all integers, and the range is y ≥ 0.

How does a rectangle turn into a trapizode

This season, the probability that the Yankees will win a game is 0.59 and the probability that the Yankees will score 5 or more runs in a game is 0.45. The probability that the Yankees lose and score fewer than 5 runs is 0.33.

In a high school the ratio of make to female is 8:5, when 400 senior males are removed and 300 senior females are removed, the ratio is 8:3. the number of students in the whole school is?

The 5th graders were given sandwiches for lunch during their field trip. Nathan at 5/6 of his sandwich, Leroy ate 7/8 of his sandwich, and Sofia ate 5/8. Who ate the greatest amount of their sandwich?