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nexus9112 [7]
3 years ago
12

danielle spent $35 on a magazine and some notepads. if the magazine cost $3 and each notepad cost $4 then how many notepads did

she buy
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0
WORK:
$35 - $3 = $32
$32 divided by $4 = 8
ANSWER:
Danielle bought 8 notepads.
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What is y=-2/5x in standard form
VikaD [51]

Standard form is x + y = number.

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y + 2/5 x = 0

2/5 x + y = 0

In standard form, the coefficient of x or y cannot be a fraction.

Therefore we have to multiply the whole equation by 5.

2x + 5y = 0

3 0
3 years ago
Write each expression as an equivalent expression with a single logarithm. Assume xx, yy, and zz are positive real
Alekssandra [29.7K]

Answer:

\ln(\frac{xx + yy}{zz})^{\frac{1}{2}}

Step-by-step explanation:

Given:

1/2(ln(xx + yy) − ln(zz))

Now,

From the properties of log function,

1)  n × ln(x) = ln(xⁿ)

and,

2)  ln(A) - ln(B) = \ln\frac{A}{B}

applying the properties in the given equation

we get the above equation as:

\frac{1}{2}(\ln\frac{xx + yy}{zz})        

( using the property 2 we get (ln(xx + yy) − ln(zz) = \ln\frac{xx + yy}{zz}  

or

⇒ \ln(\frac{xx + yy}{zz})^{\frac{1}{2}}    ( using the property 1 i.e n × ln(x) = ln(xⁿ) )

expression as an equivalent expression with a single logarithm is \ln(\frac{xx + yy}{zz})^{\frac{1}{2}}

3 0
3 years ago
The distance between Columbus,Ohio and New York City is about 560 miles how many hours would it take the train to travel between
sergey [27]
Since the distance is 560 miles and the bus goes 268 miles per hour, the answer can be given as:
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3 0
3 years ago
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Answer:

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Step-by-step explanation:

Given algebraic expression can be written as :

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Now opening the bracket

Or, 2 x³ - 10 x² + 11 x - 7 = x × ( 2 x² + h x + 3 ) - 4 × ( 2 x² + h x + 3  ) + k

Or, 2 x³ - 10 x² + 11 x - 7 = 2 x³ + h x² + 3 x - 2 x² - 4 h x - 12  +k

Or , 2 x³ - 10 x² + 11 x - 7 = 2 x³ + ( h - 2 ) x² + ( 3 - 4 h ) x - 12  + k

Now, equating the equation both sides

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or, 11 = 3 - 4 h

or, 11 - 3 = - 4 h

or, 8 = - 4 h

∴ h = \frac{-8}{4}

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Hence The values for expression is h = - 2 and k = 5    . Answer

5 0
3 years ago
Is y=-9x proportional
icang [17]
Yes, y=-9x is proportional
3 0
3 years ago
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