3 years ago

S. ATV that usually sells for $176.52 is on sale for 30% off. If sales tax on the TV is 5% we

Mathematics

1 answer:

Grace [21]3 years ago

7 0

Answer:

Step-by-step explanation:

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Solve the following simultaneous equations : with the help of steps 1. x + 2y = 1, 3x - y = 17

IRISSAK [1]

Answer:

x = 5, y = -2

Step-by-step explanation:

Given equations:

x + 2y = 1
3x - y = 17

From the first equation we get:

x = 1 -2y

Substitute x in the second equation, find y:

3x - y = 17
3*(1-2y) - y = 17
3 - 6y - y = 17
-7y = 17 - 3
-7y = 14
y = -14/7
y = -2

Find x:

x = 1 - 2y
x = 1 - 2*(-2)
x = 1 + 4
x = 5

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3 years ago

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ivann1987 [24]

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3 years ago

Find the slope of the line that would pass

Leno4ka [110]

Answer:

Step-by-step explanation:

Here we go!

Slope Formula:

$\frac{ {y}^{2} - {y}^{1} }{ {x}^{2} - {x}^{1} }$

What we know: (-4, -52) and (-1, -22)

Plug in the numbers!

$\frac{ - 52 - ( - 22)}{ - 4 - ( - 1)}$

Fix it!

$\frac{ - 52 + 22}{ - 4 + 1}$

Add

$\frac{ - 30}{ - 3}$

Divide

(negative divided by a negative is a positive!!)

Slope is 10

Hope this helps!

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Vanyuwa [196]

Answer:

FIVE

Step-by-step explanation:

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Elanso [62]

40+1
50-9
4(10)+1
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