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WINSTONCH [101]
2 years ago
5

the temperature changed from 5 degrees Celsius 6pm to -2 degrees Celsius at midnight. How much did the temperature decrease?

Mathematics
1 answer:
telo118 [61]2 years ago
5 0
7 degrees Celsius because to go from 5 to -2 you would subtract 7 so it’s 7.
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1. At a fundraiser breakfast, the bill for 3 glasses of orange juice and 5 pancake specials is $7.60, whereas the bill for 1 gla
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A.
If:
j - the price of a glass of juice
p - the price of a pancake special
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j + 2p = 2.90

b.
If:
j + 2p = 2.90
Then:
j = 2.90 - 2p
We can substite j in the first equation.
<span>If:
3j + 5p = 7.60
</span><span>j = 2.90 - 2p
</span>Then: 
3×(2.90-2p) + 5p = 7.60
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If:
<span>j = 2.90 - 2p
</span><span>p = 1.10
</span>Then:
j = 2.90 - 2×1.10
j = 2.90 - 2.20
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Thus, the price of a glass of juice is $0.70 and <span>the price of a pancake special is $1.10.

c.
If:
p = 1.10
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Vadim26 [7]
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