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A Bikini and sunglasses cost 110 $ in total. The Bikini costs 100 $ more than the glasses. How much do the Sunglasses cost?
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Apr 9, 2018
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A Bikini and sunglasses cost 110 $ in total. The Bikini costs 100 $ more than the glasses. How much do the Sunglasses cost?
Mathematics
middle-school
Kellyann
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Let glasses be g.
Bikini cost $100 more than glasses = 100 + g.
Total cost = $110
g + (100 + g) = 110
g + g + 100 = 110
2g + 100 = 110
2g = 110 - 100
2g = 10
g = 10/2
g = 5
Therefore the sunglasses represented by g = $5
Hope this helps.
Chantalle
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Apr 11, 2018
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Chantalle
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Given knowledge:
{b+s=110}
{b=s+100}
Solving:
s+s+100=110
2s+100=110 (simplify)
2s=10 (subtract 100)
s=5 (divide by 2)
b+5=110
b=105 (subtract 5)
Bart Kiers
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Apr 13, 2018
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Bart Kiers
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