D=10
Explanations: 2d-5=3d- 15
2d- 3d =-15+5
D=10
The answer would be 40.2 I'm pretty sure I'm right. I hope I helped!
Answer:
15
Step-by-step explanation:
let r represent red marbles then white = 2r + 5 and total is 20, thus
r + 2r + 5 = 20 ( subtract 5 from both sides )
3r = 15 ( divide both sides by 3 )
r = 5 ← number of red marbles
Thus number of white = 20 - 5 = 15
Answer:
A: 10 x 1/2 = 15
Step-by-step explanation:
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