The sum of two positive numbers a and b is 820. If a_ b =80,find the value
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Answered by
4
Answer:
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Step-by-step explanation:
(1) : a + b = 820
(2) : a - b = 80
You calculate (1) + (2):
a + b + (a - b) = 820 + 80
a + b + a - b = 900
2a = 900
→ a = 450
Recall (1):
a + b = 820
b = 820 - a
b = 820 - 450
→ b = 370
Answered by
0
Answer:
820/40 =2000 hgg×$/ €79664%^?/ $/
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