One number is 6 less than 3 times another number and their sum is 62 find the numbers

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?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Y=21.95x+10 y=22.45x solve by substitution