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Sliva [168]
3 years ago
14

Which ordered pair is a solution of the equation? y=-3x-4

Mathematics
2 answers:
Svetllana [295]3 years ago
4 0

Answer:

(1, - 7 )

Step-by-step explanation:

To find a solution, choose any value for x, substitute into the equation and solve for y

Choose x = 1, then

y = - 3(1) - 4 = - 3 - 4 = - 7

Thus (1, - 7 ) is a solution to the equation

mario62 [17]3 years ago
3 0

Answer:

(X , Y ) = ( -2 , 2)

Step-by-step explanation:

y = -3x - 4

using value ( x , y ) : ( -2 , 2 )

=> (2 ) = -3 (-2) -4

= > 2 = 6 -4

=> 2 = 2 hence proved

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Find the selling price of a $20 item after a 20% markup.
nevsk [136]

Answer:

$24

Step-by-step explanation:

For a markup, use the formula <em>a = ( 1 + p ) × w. </em>

!!! Remember, <em>a </em>is the selling price, and <em>w </em>is the original price !!!

!!! The <em>p </em>is the percent in decimal form. 20% as a decimal is 0.20 (move the decimal twice to the left) !!!

<em />

Inserting the values, it should look like <em>a = ( 1 + 0.20 ) × 20 </em>

<em>a = 1.20 × 20 </em>

<em>a = 24</em>

<em />

Hence, the new selling price is $24.

Hope this helps! :)

4 0
3 years ago
Find the arc length and show work!<br> - Marking brainliest
nadezda [96]

Answer:

87.965 in.

Step-by-step explanation:

1) the formula of full arc is L=2π*r, the formula of the required 7π/4 is:

L=7π/4 *r;

2) according to the formula above:

L=7π*16/4=28π≈87,964594300514210676954014731826 (in).

8 0
2 years ago
Help me with this please
Tcecarenko [31]

Answer:

It would be -13

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The shape below is a horizontal cross section of a figure. Select all the possible figures that could have this shape as a cross
Dvinal [7]

Answer:

D. Rectangular prism

Step-by-step explanation:

I believe the answer is D. Rectangular prism

3 0
2 years ago
7.89 greater or less than 7.189<br><br> 6.030 greater less or equal 6.03
NemiM [27]
7.89 is greater than 7.189,  6.03 is equal to 6.030, because that last zero doesn't really change anything it cancels itself out
5 0
3 years ago
Read 2 more answers
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