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Setler79
[48]
2 years ago
9
The sum of two numbers is 70. the first number is 2/5 of the second number. What are the numbers?
Mathematics
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2
answers:
11111nata11111
[884]
2 years ago
3
0
A + b = 70
a = 2/5b
2/5b + b = 70
2/5b + 5/5b = 70
7/5b = 70
b = 70 * 5/7
b = 350/7
b = 50
a = 2/5b
a = 2/5(50)
a = 100/5
a = 20
the numbers are 50 and 20....the smallest being 20 and the largest being 50
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dolphi86
[110]
2 years ago
3
0
X + 2/5x = 70
1x + 2/5x = 70
1 2/5 x = 70
7/5 x = 70 multiply both sides by 5
7x = 350 divide both sides by 7
x = 50 so 2/5 x = 20 the two numbers are 50 and 20
the larger of the two is 50
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