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stira [4]
3 years ago
13

HELP HELP HELP PLEASEE 24 POINTS

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:

q4 answer is c

Step-by-step explanation:

mark as brainllest please

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K-mart buys lego solar systems for $165 and marks them up 3/5 of the price. How much do they sell for?
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Can you answer #1 and #3 please (find the slope) ASAP
daser333 [38]

To calculate the slope of a line, you only need two points from that line, (x1, y1) and (x2, y2).

The equation used to calculate the slope from two points is:

(y2 - y1) / (x2 - x1)

#1:

First point : (5 ,7) = (x1, y1)

Second point : (2, -2) = (x2, y2)

Equation : (-2 - 7) / (2 - 5)

Solve the equation:

(-2 - 7) = -9

(2 - 5) = -3

-9/-3 = 3 (a negative number divided by a negative number gives you a positive number)

The slope of the line in #1 is : 3


#3:

First point : (5, 9) = (x1, y1)

Second point : (5, -2) = (x2, y2)

Equation : (-2 - 9) / (5 - 5)

Solve the equation:

In this case, you don't need to solve anything, because anything divided by zero will give you 0 (5 minus 5 = 0).

The slope of the line in #3 is : 0


8 0
2 years ago
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There are 25 students in a class at the beginning of the school year and the average number of siblings for each student is thre
Zigmanuir [339]

Answer:  Yes. The new average is 3

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25 students at 3 siblings each = 75 siblings

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3 years ago
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aleksklad [387]

Answer:

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Step-by-step explanation:

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For, example, an employee's payment is deducted by $350 at the rate of 15% tax and other deduction.

Therefore, \frac{15x}{100}=350, ⇒ x = $2333.33 is the before tax income of the person.

4 0
2 years ago
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