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dolphi86 [110]
2 years ago
7

The shirt was doubly marked down! There was a 25% off sale, and then an additional 10% off of that. After the mark downs, the pr

ice was $30. Which equation shows the original price of the shirt? Use S to represent original price of shirt.
Mathematics
1 answer:
Blizzard [7]2 years ago
5 0

Answer:

40.5

Step-by-step explanation:

i multiplied 30 with .25 which was 7.5

then i multiplied 30 with .1 which was 3

add those together 10.5

add that too 30 which is 40.5

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Alex73 [517]

Answer:

(-5)+(-4)= -9

(-3)+(+1)= -2

(-2)+(-7)= -9

Step-by-step explanation:

4 0
3 years ago
what is 2/a = a/50. These are factions if you already didn't know. I need to know what the answer is. it is a proportion.
Natalija [7]
2/a= a/50

Cross multiply:
a* a= 2*50
⇒ a^2= 100
⇒ a= √100 or a= -√100
⇒ a= 10 or a= -10

Final answer: a= 10 or a= -10~
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2 years ago
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