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Bezzdna [24]
3 years ago
9

What number can be written as six hundred forty-seven?

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0
647? Not completely sure if that’s the answer you’re looking for.
vladimir2022 [97]3 years ago
4 0
647 that is how your write it. 
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Please help me with this
Ne4ueva [31]

Answer:

Option c

Step-by-step explanation:

A system of equations are given to us. And we need to solve them . The given system is

\begin{cases} y = 2x - 3\dots 1 \\ y = x^2 - 3\dots 2 \end{cases}

We numbered the equations here . Now put the value of equation 1 in equation 2 that is substituting y = 2x - 3 in eq. 2 .

\implies y = x^2 - 3 \\\\\implies 2x - 3 = x^2 - 3 \\\\\implies x^2 - 2x = 0 \\\\\implies x(x-2) = 0 \\\\\implies\red{ x = 0 , 2 }

We got two values of x as 0 & 2 . Alternatively substituting these values we have ,

\implies y = 2 x - 3 \\\\\implies y = 2(0)-3 \qquad or \qquad y = 2(2)-3 \\\\\implies y = 0-3 \qquad or \qquad 4 - 3 \\\\\implies \red{ y = -3 , 1 }

Thefore the required answer is ,

\red{Option\:c} \begin{cases} (0,-3) \\ (2,1) \end{cases}

4 0
2 years ago
Read 2 more answers
Can someone make my day and please help me solve number 3?
olga nikolaevna [1]
X = cost of car before tax

Total cost = (cost of car before tax) + (tax amount)
Total cost = x + 5% of x
Total cost = x + 0.05x
Total cost = 1.05x

The total cost is given to be $14,512, which means 

<span>Total cost = 1.05x = 14512
</span>
1.05x = 14512
1.05x/1.05 = 14512/1.05
x = 13,820.95238
x = 13,820.95

The total cost of the car before tax, to the nearest cent, is $13,820.95
6 0
2 years ago
The wholesale price for a dozen pairs of socks is $4.30. The retail price for the same dozen pairs of socks is $9.25. What is th
Mandarinka [93]

Answer:

the mark up used by the retailer is 115.12% of the wholesale price

Step-by-step explanation:

Mark-up is the percentage increase of the retail price over the wholesale price

Mark-up = (difference between retail and whole sale price / retail price ) x 100

difference between retail and whole sale price = $9.25 - $4.30 = $4.95

(4.95 / 4.3) x 100 = 115.12%.

5 0
2 years ago
Solve for slope. (-2,7) (-1,6)
Lostsunrise [7]

Answer:

m = - 1/3

Thats the answer.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
) Which value is the solution of the equation 54 = 6n? ​
xeze [42]

54 = 6n     divide 6 on both sides, 6's will cancel on the right.

__    __     solve for 54 ÷ 6 = 9

6      6

n = 9, choice 4 -- <em>final answer</em>

hope this helps :)

8 0
2 years ago
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