Solve the system of equations using substitution y=2x-4 and x + 2y=10

What is the ratio 18 to 27 written as a fraction in lowest terms?

Qual é o perímetro de um terreno retangular com 18 metros de largura e 25 metros de comprimendo?

Fifteen cars containing a total of 60 people crossed a toll bridge. each of the 15 cars contained at least 1 person but no more than 5 people. at most how many cars contained exactly 3 people?

What is 27/75 in decimal form

Which quotient is equivalent to the mixed number 2 2/3? A. 3 : 7 B. 7 : 3 C. 3 : 8 D. 8 : 3

10c - f = - 13 cd solve for c

what is the surface area of a rectangular prisim with a base length of 9 yd, base width of 7 yd, and a height of 4 yd?

Solve 1-5+1x (4x4-31) x8

The volume of a rectangular prism is 80 cubic centimeters the prism is 20 centimeters long and 2 centimeters wide what is its height?

Round 93.0129 to the nearest thousandth and how show work