Two green faucets take 4 hours together to fill a deposit. two other blue faucets take half together. how long does it take to fill the tank with a blue and a green tap together?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Write the fraction or mixed number and the decimal shown by the model

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?