Solve the system by the substitution method.

X+Y=-3

Y=-4x

Ranger says the expression is not in its simplest form. He thinks the two terms need to be combined. Is Ranger right that 8x - 20 can be simplified further?

What is 0.9 as a fraction in simplest form

What is the slope of the line represented by the equation y = - 2/3 - 5x? A. - 5 B - 2/3 C. 2/3 D. 5

A firecracker shoots up from a hill 140 feet high, with an initial speed of 100 feet per second. Using the formula H (t) = - 16t^2 + vt + s, approximately how long will it take the firecracker to hit the ground?

The table shows data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ College 50 5 7.5 15 7.5 11 13.8 6.4 High School16 0 9.5 14.

Maria's family hosts a barbeque every month in the summer. In May, they bought 3.2 pounds of hamburger and 3 packages of hot dogs. In June, they bought 1 1/2 times as much hamburger and 1/3 as many hot dogs. Hamburger costs $4.

A bag Contains rubber bands with lengths that are normally distributed with a mean of 6 cm of length, and a standard deviation of 1.5 cm. What is the probability that a randomly selected nail is between 4.5 and 7.5 cm long?

Is the function y = 8x - 4 linear or nonlinear?

The drawing of the tabletop is 8 centimeters long. If the scale of the drawing is 2 centimeters = 0.75 meters. How many meters long is the coffee table that Ernest designed?

20% of what amount is 8?