How many solutions does this linear system have?

y = 2x-5

-8x - 4y = - 20

O one solution: (-2,5,0)

O one solution: (2.5, 0)

O no solution

infinite number of solutions

Dos motos, A y B, toman la salida en una carrera de 90 km. La moto A realiza el recorrido con una velocidad media inferior en 20 km/h a la de la moto B, con lo que llega a la meta 3 minutos después que B. Calcula la velocidad de cada moto.

100 10, UUS 11. A ball is thrown upward at a velocity of 15 meters per second from a height that is 20 meters above the ground. The height h (in meters) of the ball at time t in seconds) after it is thrown can be found by h (t) = - 5t^2 + 15t + 20.

beth sold half of her comic books and then bought nine more. shoe now has 28. with how much did she begin?

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48 is what percent of 52?

Which transformations of the graph of f (x) = - 4x result in the graph of f (x) = 4x + 3? 1. reflection over the x-axis and shifted 3 units to the left 2. reflection over the y-axis and shifted 3 units to the right 3.

Jenny is kn her way home in her car. Her drive is 20 miles long. She has finished one-fourth of tje drive so far. How far has she driven?

Simplify 1) 3b + b + 6 = 2) n + 5n - 3c = 3) 12d - 2d + e =

If h = 21 units and r = 7 units, what is the volume of the cone shown above? Use 3.14 for.

Convert the fraction 2/5 to a decimal and a percent. Show all of your work and explain your answer.