How can you decide which variable to solve first when you are solving a linear system by substitution

What is the probability of rolling an even number or a perfect square using a 20-sided die? A) 10/20 B) 9/20 C) 12/20 D) 13/20

When writing from a prompt what is the first thing you should do? *analyze the prompt *begin prewriting *begin researching *write a draft

A high school has 16 math teachers for 1856 math students. What is the ratio of math teachers to math students?

The bank statement of July 31 for Walgreens showed a balance of $6,008.10, and the checkbook showed a balance of $1,900.40. The bookkeeper of Walgreens noticed from the bank statement that the bank had collected a note for $666.66.

What is 18-9=1 + I keep getting the answer 10 am I right?

2 pipes running together can fill tank in 3 1/13 mins if one takes 3 mins more than other to fill it, find time in which each pipe woulf fill tank

Water in all three states is still water Question 3 options: True False

I have two consecutive odd integers. Their sum is 16. What is the smaller integer?

How do you evaluate lim (x->0) sin (9x) / 6x?

What are the values of x and y? 2x+3y=15.5 x+y=6