Nikki is thinking of three numbers. The three numbers add up to 60. The middle number is twice as large as the smallest number. If you add up the two largest numbers and subtract the smallest number from the sum you get 40. Write a system of equations from the given information.

What could explain what happened when the time was equal to 120 minutes

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)