En una práctica de Química, Jaime debe mezclar una disolución de ácido clorhídrico del 6% de pureza en volumen con otra del 30% para conseguir una disolución de ácido con el 12% de pureza. ¿Cuánto
debe tomar de cada uno para conseguir 4 litros de mezcla?

Bonnie and bobby are saving money for a vacation. each friend starts with an amount and also saves a specific amount each week. bonnie created a table to show the total she has saved at the end of each week.. weeks 0 1 2 3 4 5 6 7 8 amount saved 12 16 20 24 28 32 36 40 44 bobby came up with the following equation to show the total, y, he has saved at the end of each week, x. y = 12x + 4 compare the rate at which each friend saves money. select the correct answer from the drop-down menu to complete the statement. the rate at which bobby is adding to his savings each week is $ more than the rate at which bonnie is adding to her savings each week.

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these

The length of a rectangle is shown below: on a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points a and b are shown. the point a is on ordered pair 1, 2, and the point b is on ordered pair negative 2, 2. a straight line joins the points a and b. if the area of the rectangle to be drawn is 12 square units, where should points c and d be located, if they lie vertically below the line that connects b and a, to make this rectangle?