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3 years ago

12

Lily was out at a restaurant for dinner when the bill came. She wanted to leave a tip of 19%. What number should she multiply th

e cost of the meal by to find the total plus tip in one step

1 answer:

Fantom [35]3 years ago

4 0

Answer: she should multiply 0.19 to the original price and then add that to the total cost before the tip and there is your answer.

Step-by-step explanation:

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Which algebraic rule describes the 180° counterclockwise rotation about the origin

fgiga [73]

Rule describes the 180° counterclockwise rotation about the origin=
(x,y)→(−x,−y)

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Blababa [14]

Answer:

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3 years ago

Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square r

steposvetlana [31]

Answer:

x equals plus or minus square root of 5 minus 1

Step-by-step explanation:

we have

$x^{2} +2x=4$

Divide by 2 the coefficient of the x-term

$2/2=1$

squared the number

$1^2=1$

Adds both sides

$x^{2} +2x+1=4+1$

$x^{2} +2x+1=5$

Rewrite as perfect squares

$(x+1)^{2}=5$

take the square root both sides

$x+1=(+/-)\sqrt{5}$

$x=(+/-)\sqrt{5}-1$

therefore

x equals plus or minus square root of 5 minus 1

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3 years ago

Change 2 2/5 to an improper fraction

snow_lady [41]

2x5=10+2=12 so this as an improper fraction equals 12/5

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. Campbell's paycheck was $257.20. She put 1/4 of her paycheck in her savings account and used 1/3 of what was left to pay bills

evablogger [386]

I could be wrong because people do make mistakes, but i’m pretty sure the answer i got was right
$128.60
explanation:
$257.20 divided by 4=$64.30
$257.20-$64.30=$192.90
$192.90 divided by 3=$64.30
$192.90-$64.30=$128.60
therefore, she has $128.60 left from her paycheck after bills

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3 years ago