natawkinn8eKrain natawkinn8eKrain

25-03-2016
Mathematics

contestada

Marcia bought a bag of marbles. there were twice as many purples ones as red ones there were 93 marbles in all. how many of each color marble were there?

Respuesta :

apologiabiology apologiabiology

25-03-2016

r=number of red m arbles
p=number of purple marbles

2 times as many purple as red
p=2r

total is 93
r+p=93

we have
p=2r
r+p=93

subsitute 2r for p
r+2r=93
3r=93
divide 3
r=31

subsitute
p=2r
p=2(31)
p=62

31 red
63 purble

Answer Link

Otras preguntas

how should you report sexual conduct if consent was not given

The procedure to attach individual synthetic eyelashes to a client's own lashes at their base is:

PLEASE HELP! Class is almost ending, I don't want to repeat. Reactions and Balancing Equations Assignment Directions: Balance the following equations: 1. __

How do you tell someone that you stay home in spanish

Keisha wants to read for 90 minutes so far she has read 30 percent over goal how much longer does she need to read

Name two things found in a plant cell that are not found in an animal cell and state their function and benefit for the plant cell

Suppose you increase your walking speed from 7 m/s to 12 m/s in a period of 3 s. What is your acceleration?

Which of these is a possible outcome in the absence of the mesosphere?

marsha has 32 bottle caps she want to display the bottle caps in rows with the same number of bottle caps in each row how many different ways can she display t

An element’s ability to react, or bond, with another element is an example of a