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AsiaDeas4078
25.05.2020 •
Mathematics
Yowe bags that Ethan can pack?
40. Adelene had three times as many marbles as Betty. After Adelene had
given Betty 25 marbles, they had the same number of marbles each. How
many marbles did they have altogether?
38.1/5,1/2=2/10.5/10,5/10-2/10=3/10=3ko ans 3kg
39.36+27=63/8=7=ans:8
40.
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Ответ:
Step-by-step explanation:
Number of marbles with Betty = x
Number of marbles with Adelene = 3x
Adelene gives 25 marbles to Betty.
Now Adelene has (3x - 25) marbles and Betty has (x + 25) marbles.
3x - 25 = x + 25
Add 25 to both sides
3x - 25 +25 = x + 25 + 25
3x = x +50
Subtract x from both sides.
3x - x = x + 50 - x
2x = 50
Divide both sides by 2
2x/2 = 50/2
x = 25
Number of marbles with Betty = 25
Number of marbles with Adelene = 3*25 = 75
Marbles with both = 25 + 75 = 100
Ответ:
Answer
you have to divide 450/25
the answer will be 18