jannarae052 jannarae052
  • 12-01-2017
  • Mathematics
contestada

Mei does 6 problems in 18 minutes. How many can she complete in 12 minutes

Respuesta :

helpmetnx helpmetnx
  • 12-01-2017
Do cross multiplication

  6  =  x
 18    12

Now cross multiply

(6)(12) = (18)(x)

       72 = 18x

Divide both sides by 18
     
    
     72  = 18x
     18      18

      4   = x

So tMei can complete 4 problems in 12 minutes.

Answer Link

Otras preguntas

5,075 & 1450 what is the rate
Express 0.00005 s in µs.
Explain how the United States would benefit from remaining small instead of doubling in size?
Xavier made 25 pounds of roasted almonds for the fair he has 31/2 pounds left at the end of the fair how many pounds of roasted almonds did he sell at the fair
Factor the polynomial. −4y²+3xy−12y+9x
How many letters are in pablo picasso's name?
--- nos da una merienda en el vuelo.
When an isolated object becomes charged by induction, which best describes the net charge on the object? A. The net charge increases B. The net charge decreas
Calculate the volume in milliliters of a 5.55-g sample of a solid with a density of 3.03 g/mL
State the formula used for finding the area of a rectangle. Then apply the formula to find the area of the rectangle in the image: