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ozzi
3 years ago
6

A carpect salesperson claims that a carpet on sid for $12.95 per square yard is 30% off its original price. What was its origina

l price?
Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
8 0
12.95      30
-------- =  ----
 x            100

1295  = 30x
-------    -----
30          30

x = 43.16666667
 
not sure how u want to round
dolphi86 [110]3 years ago
6 0

Answer:

It's original price as $18.5.

Step-by-step explanation:

This question can be solved using a rule of three.

$12.95 per square yard is 30% off its original price.

This means that $12.95 is 100-30 = 70% = 0.7 of the original price. How much is 100% = 1?

x - 1

12.95 - 0.7

0.7x = 12.95

x = \frac{12.95}{0.7}

x = 18.5

It's original price as $18.5.

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3 years ago
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-5(-3x+10)=30 what is x
Feliz [49]

Answer:

5.33333333...

Step-by-step explanation:

it will be like -5 out the bracket x - 3 x which gives you 15 then we'll check again - 5 then you times it by there 10 in the bracket and then it gives you 50 and then it will be there in 15 x - 50 equals to 30 then you take the -50 to the other side where there is 30

then it will be 15 x equals to 30 + 50 and then then 15 x equals to 8 and then you divide both of the sides with 15 then get your answer

-5 (-3x+10)=30

15x-50=30

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3 0
3 years ago
Use the first and last data points to find the slope intercept equation of a trend line.
andriy [413]

Answer:

y = \frac{16}{3}x-79

Step-by-step explanation:

From the given table,

Two points are (1, 15) and (7, 47)

If the two points (x_1,y_1) and (x_2,y_2) are lying on a line then slope 'm' of the line will be,

m = \frac{y_2-y_1}{x_2-x_1}

   = \frac{47-15}{7-1}

   = \frac{32}{6}

   = \frac{16}{3}

Let the equation of a line passing through (h, k) is,

y - h = m(x - k)

If the line passes through (1, 15)

y - 1 = \frac{16}{3}(x-15)

y = \frac{16}{3}x-\frac{16}{3}(15)+1

y = \frac{16}{3}x-80+1

y = \frac{16}{3}x-79

4 0
3 years ago
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Answer:

321/100

Step-by-step explanation:

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Phantasy [73]

Answer:

slope = 3

point (2, 5)

b = y - m*x

b = 5 -3*2

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Then we enter the slope and the value of b into this equation:

y = mx + b

y = 3x -1

Source: https://www.1728.org/distance.htm

Step-by-step explanation:

3 0
3 years ago
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