SOLUTION: A jar contains marbles in the ratio of 11 red to 5 black. If there 230 black marbles, how many red marbles are there?
Select the correct answer.
a. 506 red
b. 501 red
c.
Algebra.Com
Question 810293: A jar contains marbles in the ratio of 11 red to 5 black. If there 230 black marbles, how many red marbles are there?
Select the correct answer.
a. 506 red
b. 501 red
c. 519 red
d. 485 red
Found 2 solutions by erica65404, stanbon:
Answer by erica65404(394) (Show Source): You can put this solution on YOUR website!
simply make the ratio a fraction 11/5 and make the x reds 230 blacks a fraction and make them equal to each other. make sure the units matvh up. red on top and black on bottom.
cross multiply
the answer is a.506 red.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A jar contains marbles in the ratio of 11 red to 5 black.
If there 230 black marbles, how many red marbles are there?
-----
11:5 is the same as 11x:5x where 5x is the number of black marbles.
-----
Solve:: 5x = 230
x = 46
------
Then # of red = 11x = 11*46 = 506
=====================================
Cheers,
Stan H.
===================
Select the correct answer.
a. 506 red
b. 501 red
c. 519 red
d. 485 red
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