Math
posted by Kevin .
A bag holds 57 green and blue marbles. There are 13 more blue marbles then green marbles. How many marbles of each color are there?

Math 
abc
x=green marbles
y=blue marbles
x+y=57
x+13=y b/c there are 13 more blue marbles
substitute in to other equation
x+(x+13)=57
then solve for x, then for y add 13 to x
Respond to this Question
Similar Questions

math
George has a bag of marbles. Inside the bag are 5 red marbles, 3 green marbles, and 2 blue marbles. He draws out two marbles in a row, without replacement. What is the number of outcomes? 
math
George has a bag of marbles. Inside the bag are 5 red marbles, 3 green marbles, and 2 blue marbles. He draws out two marbles in a row, without replacement. What is the number of outcomes? 
math
There are 25 red, blue, yellow and green marbles in a bag. Four of the marbles are blue and the probability of selecting a blue or green marble at random is 40%. Write and solve an equation to determine the number of green marbles … 
Math
Lisa has 5 more green marbles than blue marbles. She has a total of 40 green and blue marbles. Which system of equations represents this situation if x is the number of green marbles and y is the number of blue marbles? 
math
sally has a bag with red,blue, and green marbles. She has twice as many blue marbles as red marbles. She has 5 times as many green marbles as red marbles. Altogether she has 24 marbles. How many of each color marble does she have? 
math
There are 5 red marbles, 6 blue marbles, e green marbles, and 2 yellow marbles in a bag. What percent or fraction represents the number of blue and green marbles in the bag? 
Maths
Matt has a bag containing 12 green marbles and 8 blue marbles. Without looking, he pulls out one marbles and places it on the table. He then picks a second marbles from the bag. What is the probability he will have 2 blue marbles? 
Math
A bowl has red,green and blue marbles.There are 95 red marbles.the nuber of blue marbles is 5 timesthe number of green mables altogether red and green marbles are 189 less then blue marbles .how may marbles are there in total 
math
A bag is filled with green and blue marbles. There are 101 marbles in the bag. If there are 25 more green marbles than blue marbles, find the number of green marbles and the number of blue marbles in the bag. 
Math
a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)?