4cups of salad blend contain 40% spinach is mixed with an unknown amount of salad blend containing 55% spinach the resulting salad contains 50% spinach how many cups of salad or in the resulting mixture

X+ y = 5 ; x - y =3 solve using linear combination

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.