A method of solving a system of equations in which one variable is replaced by an expression using the other variable as a representation for that variable.

I need to know what this is called

Item 18 A sixth grader weighs 90 pounds, which is 120% of what he weighed in fourth grade. How much did he weigh in fourth grade?

If you were to solve the following system of equations by using a matrix which of the following would be your coefficient matrix? 5x - y = 18 3x + 8v = 15

Landon goes to sleep at different times and wakes up at different times. This week he kept track of his bedtime and wake up time and here is what he found. On Monday, Landon slept 8 hours, Tuesday - 9 hours, Wednesday - 7 hours, Thursday - 6.

Find the dimensions of a right circular cylindrical can with both a top and a bottom that holds 5832 cubic cm and is constructed with the least amount of material possible.

Select the best answer for the question. 8. Solve for x 3x + 3 - x + (-7) > 6 A. X > 5 B. x <5 C. x > 2.5 D. X> (-5) Mark for review (Will be highlighted on the review page)

A garden is 4 yards 24 inches wide and 8 yards long. Write the ratio of the width to the length as a fraction in simplest form.

0.006 0.06 0.6 6 what two numbers come next

How to solve the distributive property to express 27+60

Each small kite costs $4, while each large kite costs $7. If the total money collected selling kites is $150, and 30 kites are sold, how many of each size kite are sold? A. 8 small and 22 large B. 10 small and 20 large C. 20 small and 10 large D.

Build a triangle is it possible to build 5,5,3