Solve the system by the substitution method. Show your work.

2y - x = 5

x^2 + y^2 - 25 = 0

Electrical energy is converted into kinetic energy in a motor a battery an electromagnet a solenoid

X+6y=29 2x-4y=-6 Solve for x in the first equation

What is 4,308.08 rounded to the nearest whole number?

If FX equals 2 x 2 + 1 what is f x when x equals 3

Nick has some pens and some pencils. The number of pens he has is two less than the number of pencils. Three times the sum of the number of pencils and pens together is 18.

Sam wants to write an equation to represent a proportional relationship with a constant of proportionality of 6. He writes the equation y = 6 + x. Is he correct. If not, what is the correct equation? Explain your answer.

A street light is at the top of a "20" ft tall pole. a woman "6" ft tall walks away from the pole with a speed of "5" ft/sec along a straight path. how fast is the tip of her shadow moving when she is "50" ft from the base of the pole?

Which equation describes a relationship that is directly proportional? y = 9 y = 3x y =.20 y = x + 4

Xavier said the missing length is about 18.5 units. Without calculating, how can you tell that Xavier solved incorrectly? a right triangle with A as 21 and B as 28. trying to find the hypotnus.

What is the greatest common factor of 24jk and 32jkm