What is the last step to solving a system of equations by substitution?

4 over 9 - 1 over 5

Three-fifths of the men in chemistry class have beards and two-thirds of the women have long hair. If there are 120 men in the class and 46 are not in the above groups, how many men and how many women are there in the class?

How many different ways can you find of writing 1/2

How many variable terms are in the expression 3x3y + 5xz - 4y + x - z + 9? (Input a numeric value only.) Numerical Answers Expected! Answer for Blank 1:

The straight line depreciation equation for a luxury car is y = - 3,400x + 85,000. How many years will it take for the car to totally depreciate?

Describe two real life situations that uses parallel lines?

At many golf clubs, a teaching professional provides a free 10-minute lesson to new customers. A golf magazine reports that golf facilities that provide these free lessons gain, on average, $1 comma 700 in green fees, lessons, or equipment

Multiply 8 by the sum of 4 and 2

Which two numbers add up to - 11 that multiply to - 432?

Ou are having a family-barbeque. In attendance are a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one father-in-law, one mother-in-law and one