I invest some money at 5%, and 1900 less than that amount at 3%. The investment produced a total of $151. Interest in 1 year. How much did i invest at each rate?

0.42 inch of rain fell in 3 hours. How many inches of rain fell per hour?

Why does Y equal Mxb?

X²+3x-70=0 (x-10) = 0 (x+7) = 0

How to fine all possible four digit combinations to a large number

What does it mean for two ratios to form a proportion

How do you do 4x - 9 = 6x - 13? what do you subtract from both sides?

Which equation can be used to determine the reference angle, r, if 0=7pi/12?

6. The school that Laura goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 senior citizen tickets, 2 adult tickets and 5 child tickets for a total of $55.

Find all factor pairs for 9

José is 3 years younger than 3 times his brother's age. Write a rule that represents José's age j as a function of his brother's age b. How old is José if his brother is 5?