Students sold yogurt to raise money for graduation. the first 20 yogurts sold cost $5 each. to sell more yogurt they lowered the cost to $4 each. if they raised $216, how many yogurts did they sell in all?

Explain why the factor 1.5 is broke. into two numbers in the model.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position