A scientist is working with two different concentrations of hydrochloric acid (HCl). One bottle is 80% HCl, and the other is 30% HCl. For their experiment they need 1 liter of 60% HCl. How many liters of the 80% solution do they need?
How many liters of the 30% solution?

Find the value of x. give reasons to justify your solutions! h ∈ ig

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?