Which method is not used to find the solution of a system of linear equations. guess and check

graphing

substitution

matrices

Ann has some dimes and quarters. If she has 13 coins worth a total of $2.50, how many of each type of coin does she have?

Write the sum as a mixed number so the fractional part is less than 1. 4 1/2 plus 2. 1/2

Kim has a piece of string that is 190 cm long, she wants to wrap it around a circular tree that has a diameter of 15 cm, about how many times will kim be able to wrap the string around the tree trunk

Evaluate. 73 A) 21 B) 49 C) 81 D) 343 The 3 is at the top of the seven

You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.7. With water it will die with probability 0.6. You are 86 % certain the neighbor will remember to water the plant.

David estimates that he will have expenses totaling $24,870 for one year of college. He will receive $7,560 in grants. How much will David have to contribute each semester during this year?

What value of x makes this question true - 3/2x+1=x+7

Lindsay ordered twice as many blankets as she did quilts for the department store where she works. The order was for 129 items. How many blankets and how many quilts did Lindsay order?

A teacher is making identical activity packets using 92 crayons and 23 sheets of paper. What is the greatest number of packets the teacher can make with no item left over?

Which value from the solution set will satisfy the equation below? x2 - 3 = 14