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Ostrovityanka [42]
2 years ago
8

Step A: = –c + = Step B: = Determine the justification for the steps from the derivation of the quadratic formula. Justification

of step A: Justification of step B:
You get 88 POINTS if you answer!
Mathematics
2 answers:
kompoz [17]2 years ago
8 0
The correct answers are common denominator and multiplication property of equality.

Hope this helps! It was correct for me!
amid [387]2 years ago
5 0

Answer:

correct! thank u

Step-by-step explanation:


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Sue’s Corner Market has a markup of 60% on bottled water. If the market sells a bottle of water for $2, find the original amount
lakkis [162]

Markup is the amount added to the cost price of goods to cover overhead and profit.

Sue’s Corner Market has a markup of 60% on bottled water.

Let us say original price was $x.

Now price after markup is $2.

So we can make an equation like:

original price + markup price = price after markup

x + 60% of x =2

x + 0.6x =2

1.6x =2

dividing both sides by 1.6

x= 1.25

So original price was 1.25 dollars.

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2 years ago
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At a particular restaurant, each onion ring has 45 calories and each chicken wing has 65 calories. A combination meal with onion
IceJOKER [234]

Answer:

Number\ of\ chicken\ rings=5\\\\Number\ of\ onion\ rings=10

Step-by-step explanation:

Let\ number\ of\ chicken\ rings=x\\\\Number\ of\ onion\ rings=Number\ of\ chicken\ rings+5=x+5\\\\

Calories:

Calories\ in\ 1\ chicken\ ring=45\\\\Total\ calories\ because\ of\ onion\ ring=45\times Number\ of\ onion\ ring\\\\Total\ calories\ because\ of\ onion\ ring=45\times(x+5)=45x+225\\\\Calories\ in\ 1\ onion\ ring=65\\\\Total\ calories\ because\ of\ chicken\ ring=65\times Number\ of\ chicken\ ring\\\\Total\ calories\ because\ of\ chicken\ ring=65x\\\\Total\ calories=Calories\ because\ of\ onion\ ring+Calories\ because\ of\ chicken\ ring\\\\Total\ calories=45x+225+65x\\\\Tota\ calories=110x+225

Given\ total\ calories=775\\\\110x+225=775\\\\110x=775-225\\\\110x=550\\\\x=5\\\\Number\ of\ chicken\ rings=5\\\\Number\ of\ onion\ rings=5+5=10

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On a backpacking trip through Europe, Troy spent 20 Swiss francs to stay one night in a youth hostel. If the foreign exchange ra
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He spent 9 dollars and 9 cents so $9.09
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Find square root of 0.0324
irina [24]

Answer:

0.18

Step-by-step explanation:

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Sophie has $4.20 worth of dimes and quarters. She has twice as many quarters as
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Answer:

Step-by-step explanation:

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