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ekautz9675
14.03.2020 •
Mathematics
There are thirty-five red, yellow, orange, and white marbles in a bag. If half the number of red marbles equals two less than the number of yellow marbles, equals a third the number of orange marbles, and equals a third of three more than the number of white marbles, how many red marbles are there?
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Ответ:
8 red
Step-by-step explanation:
r/2 = y - 2 = ⅓ × o = (w+3)/3
r + y + o + w = 35
r = 8, y = 6, o = 12, w = 9
Ответ:
There are 8 red marbles
Step-by-step explanation:
Let the number of red be R , number of yellow be Y , number of orange be O and number of white be W. Then
Half the number of red implies :![\frac{R}{2}](/tpl/images/0547/8037/d1ec0.png)
Two less than the number of yellow implies :![y-2](/tpl/images/0547/8037/e1036.png)
A third the number of orange implies :![\frac{O}{2}](/tpl/images/0547/8037/debf6.png)
A third of three more than the number of white marbles implies :![\frac{1}{3}(W+3)](/tpl/images/0547/8037/335ed.png)
combining everything together , we have
therefore:
...................... equation 2
Therefore:
......................... equation 3
Substituting equation 1 ,2 and 3 into equation * , we have
substitute the values of Y , to get R , O and W
Therefore:
number of red = 8
number of yellow = 6
number of orange = 12
number of white = 9
Ответ:
i think the answer is dis lololol