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krek1111 [17]
3 years ago
14

130 apples at the party. There were 3 times as many yellow apples as green apples, there were twice as many red apples as yellow

apples. How many red apples were at the party
Mathematics
1 answer:
kipiarov [429]3 years ago
6 0

Answer: There were 78 red apples at the party.

Step-by-step explanation:

This situation can be represented by the equation  

x + 3x + 2(3x) = 130    where x is the number of green apples, 3x is the number of  yellow apples and 2(3x) is the number  of red apples.

Now solve for x

x +3x +2(3x) =130

4x + 6x = 130

10x  = 130

x =  13  

Now we know that x is 13 so put it into the expression for red apples and solve for the actual number of red apples.

2 * (3*13)  = ?

2 * 39 = 78  

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