How many liters of a 90% acid solution must be added to 6 liters of a 15% acid solution to obtain a 40% acid solution?

Sue wants to plan a meal with 71 grams of fat and 1755 calories. If hot dogs have 13 grams of fat and 145 calories each and if baked beans have 8 grams of fat and 330 calories per half-cup serving, how many hot dogs and servings of beans should she

A cake costs 15p more than a biscuit. Megan bought a cake and two biscuits for 90p. how much do a cake and biscuit cost each?

Noah spend some of his allowance on Monday he spent 16 of his allowance on Tuesday and 36 on Friday Villa has none of his allowance money left what fraction of his allowance to he spend on Monday

The system of equations above has how many solutions?

a beach ball has a diameter of 2 feet. which of the following is closest to the volume of the beach ball. a. 4.2ft b. 12.6ft c. 16.8ft d. 33.5ft

What is the answer to (3x) to the 5th power

What is 45 decreased by 12 percent

Zhen is an audiobook narrator. The table gives some completed audio lengths and the amount of time Zhen spends researching, recording, and editing the audiobook. Completed (hours) _ Working time (hours) 1 _ 6 1/2 3 1/2 _ 22 3/4 7 _ 45 1/2 10 _ 65

What Katie bought some flour she used 3/8 of it to bake bread what percent of the flower is left over

Which of the following are independent events? A. Knowing that you have to get up early tomorrow, and going to bed before 9 p. m. B. Knowing that you have a test in school tomorrow, and studying the night before C.