Bmayfield Bmayfield

15-01-2016
Mathematics

contestada

HELP ASAP !!

the ratio of math students who use mechanical pencils to those that use regular pencils is 3/5 if 432 students use mechanical pencils how many students use regular pencils?

Respuesta :

Аноним Аноним

15-01-2016

m=mechanical; r=regular

Set up a proportion.

[tex] \frac{3m}{5r} = \frac{432m}{r} [/tex]
432*5=2160
2160/3=720

So the answer is 720 people :)

Answer Link

Otras preguntas

Langer, Ulrich. Perfect Friendship. Studies in Literature and Moral Philosophy from Boccaccio to Corneille

A large diamond with a mass of 481.3 grams was recently discovered in a mine. if the density of the diamond is 3.51 grams over centimeters cubed, what is the vo

When researchers examine whether the five basic factors of personality are genetically influenced, they have found

When we distinguish auditory and visual stimuli, we are engaged in: Group of answer choices appreciative listening.

Give a recursive definition of each of these sets of ordered pairs of positive integers. (Hint: plot the points in the set in the plane and look for lines conta

Armando bought 45 baseball cards. of the 12 friends he invited to his cookout, half of them were able to attend. armando gave each of his friends at the cookout

5. Describe the one condition that has been varied among the four trials in Model 2.

Ragtime flourished in the united states ______. a. just before the civil war b. from the 1860s to about 1890 c. from the 1890s to about 1915 d. between the t

a box contains tickets marked 1 2 ... n. a ticket is dran at random from the box. then this ticket is replaced in teh box and a second ticket is dran at random.

The focal length of the lens of a simple camera is 40.0 mm. how far must the lens be moved to change the focus of the camera from a person 25 m away to one that