How to use substitution for 4x+3y=13 and x+y=4

What is 0.464646 ... as a fraction

What is the value of b in the equation below? StartFraction 5 Superscript 6 Over 5 squared EndFraction = a Superscript b 3 4 5 8

A number minus 2 is greater than - 10

Y + yx; use x = 15, and y = 8

Group A consists of X students and their total age is 221 and their average age is an integer. When group A is merged with Group B with twice the number of students (the number of students between 30 and 40) average age of B is reduced by 1.

What's the perimeter of the polygon shown above? 116cm 136 cm 141 cm 131 cm 43 cm

Write an algebraic expression with the constant 7 and the variable and Y

Add [1 - 4] [3 5] + [-2 6] [-2 4]

5x-3a-10z+5a+8= What is the answer to this problem

The youth center has another mural painted inside the building. if the original painting is 3 feet by 2 feet, and the mural is 15 by 10 feet, what is the scale comparing the painting to the mural?