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stealth61 [152]
3 years ago
5

The grades on a physics midterm at Covington are roughly symmetric with = 72 and = 2.0. Stephanie scored 74 on the exam. Find th

e scores for Stephanie’s exam grade. Round to two decimal places
Mathematics
2 answers:
Aleksandr [31]3 years ago
4 0

Answer:1.00

Step-by-step explanation:

A=74-72/2.0

And I did it on kahn

zheka24 [161]3 years ago
4 0

Answer:

1.00

Step-by-step explanation:

just did it on khan

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Answer:

12.2%

Step-by-step explanation:

Her total paycheck minus her salary = the commission amount

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A shop advertises a 24% off sale. The coat sold for $258 fins the decrease in price and the sale price
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Answer:

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asambeis [7]
1) name the variables:

 - amount in account 1 "a"
 - amount in account 2 "b"

2) trtanslate the statements into equations:

<span>- the difference between account 1 and account 2 is $100.

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-  if she uses 3/8 of account 1 and 7/8 of account 2, Dawn will have a down payment of $2,000.

=> (3/8)a + (7/8)b = 2000

3) solve the system of equations

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- add the two equations

=>

7a + 3a - 7b + 7b = 700 + 16,000

- combine like terms:

10a = 16,700

- divide by 10:

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- use equation (1) to find b:

a - b = 100 => b = a - 100 = 1670 - 100 = 1570

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2 years ago
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The sum of 11 and the product of 2 and a number r
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3 years ago
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