Two taps a and b can fill a cistern in 20 and 30 minif both are opend simultaneously how long will it take to fill the cistern

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

For the equations below which statement is true ? -2x=14 6x=-42

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?