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2 years ago

Help me! Thisssssssssss is due today.

Mathematics

2 answers:

Ugo [173]2 years ago

8 0

Answer:

Each box is $9.95

Step-by-step explanation:

You take 238.80 and divide it by 24. And that's your answer

IrinaVladis [17]2 years ago

7 0

Answer: the answer 9.95 for each hope i help have a nice day

Step-by-step explanation:

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Solve the system using the substituiton method branliest offered 3x-7y=10 x-4y=5

fiasKO [112]

Hi there!

To solve this problem using substitution, we need to set x equal to a value and substitute it into the other equation.

Since
x - 4y = 5,
x = 5 + 4y

3x - 7y = 10
3(5 + 4y) - 7y = 10
15 + 12y - 7y = 10
15 + 5y = 10
5y = -5
y = -1

Now that we know y is -1, we can substitute it back into the equation to find x:

y = -1
x - 4y = 5
x - 4(-1) = 5
x - (-4) = 5
x + 4 = 5
x = 1

So, your answers are x = 1 and y = -1.

Hope this helps!

6 0

3 years ago

The curve with equation y=e^2x/4+3e^x has one stationary point.find the exact value of the coordinates of this point

Softa [21]

$y=\dfrac{e^{2x}}{4+3e^x}$
$\implies y'=\dfrac{2e^{2x}(4+3e^x)-3e^xe^{2x}}{(4+3e^x)^2}$
$\implies y'=\dfrac{8e^{2x}+3e^{3x}}{(4+3e^x)^2}$

Stationary points occur where the derivative is zero. The denominator is positive for all $x$ , so we only need to worry about the numerator.

$8e^{2x}+3e^{3x}=e^{2x}(8+3e^x)=0$

$e^{2x}>0$ for all $x$ , so we can divide through:

$8+3e^x=0\implies e^x=-\dfrac83$

But $e^x>0$ for all $x\in\mathbb R$ , so this function has no stationary points...

I suspect there may be a typo in the question.

6 0

3 years ago

Marco had sales of $28,000. He makes a graduated commission of 4% on the first $10,000, 5% on the next $20,000 and 6% on anythin

Paha777 [63]

Answer:

$1,300

Step-by-step explanation:

commission on the first $10,000

= 4/100 * 10000

= $400

remaining amount

= $28,000 - $10,000

= $18,000

commission on remaining $18,000

= 5/100 * 18000

= $900

total commission

= $400 + $900

= $1,300

7 0

3 years ago

Paula used these steps to solve an equation:

Nookie1986 [14]

Answer:

steps 4 and 5

Step-by-step explanation:

When we look at example, we can see that we have :

-6r=57

So we divide by -6 and we got

$r=-\frac{57}{6}$

So, our final answer is steps 4 and 5

5 0

4 years ago

Write 4^3 in standard form

VikaD [51]

Answer:

$64$

60+4

Step-by-step explanation:

Order of Operations

Parenthesis

Exponent

Multiply

Divide

Add

Subtract

First, do exponent.

$4^3=4*4*4=64$

Standard form of 64 is: 60+4

64 is the correct answer.

60+4 is the correct answer.

6 0

3 years ago