There are 19 green marbles in a box. The number of green marbles in the box is 6 more than half the number of red marbles in the box. Write an algebraic equation to represent r, the number of red marbles in the box.

Question

Ayaan Graves

Mathematics

12 March, 11:28

There are 19 green marbles in a box. The number of green marbles in the box is 6 more than half the number of red marbles in the box. Write an algebraic equation to represent r, the number of red marbles in the box.

+2

Answers (2)

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Jimmy Oneal · Answer 1

Answer Answer R = 2 (G-6)

:G=19

G=.5R+6

19=.5R+6

-6=.5R-6

13.=.5R

Divide by 5

R = 26

Victor Dunlap · Answer 2

r = 2 (19-6)

Step-by-step explanation:

19 is the number of green. 19 also is equal to (r/2 + 6)

so 19 = r/2 + 6 rearrange for R = 2 (19-6)

subtract 6 from both sides, then multiply by 2 to cancel the denominator.

19 - 6 = r/2 13 = r/2

2 (13) = r

r = 26