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4 years ago

HELP. What are the coordinates of -2.5, 2.5 when rotated 180 degrees

Mathematics

1 answer:

yan [13]4 years ago

7 0

I think it would just be 2.5, -2.5, just flipping them?

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Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50

galina1969 [7]

Answer:

y=10+1.50x

y=amount of money he can spend

x=the number of rides he can go on

3 0

3 years ago

Solve each system by elimination by multiplying both equations. eliminate y first. show all work.

Alex17521 [72]

First $\mathrm{Multiply\:}10x-3y=18\mathrm{\:by\:}3:\quad 30x-9y=54$
Then $\mathrm{Multiply\:}6x-10y=-22\mathrm{\:by\:}5:\quad 30x-50y=-110$
To get $\begin{bmatrix}30x-9y=54\\ 30x-50y=-110\end{bmatrix}$
So...
$30x-50y=-110 \ \textgreater \ \begin{bmatrix}30x-9y=54\\ -41y=-164\end{bmatrix}$
$-41y=-164 \ \textgreater \ \mathrm{Divide\:both\:sides\:by\:}-41 \ \textgreater \ \frac{-41y}{-41}=\frac{-164}{-41}$
To get y = 4.
$\mathrm{For\:}30x-9y=54\mathrm{\:plug\:in\:} \:y=4 \ \textgreater \ 30x-9\cdot \:4=54$
$\mathrm{Multiply\:the\:numbers:}\:9\cdot \:4=36 \ \textgreater \ 30x-36=54 \ \textgreater \$
Next $\mathrm{Add\:}36\mathrm{\:to\:both\:sides} \ \textgreater \ 30x-36+36=54+36 \ \textgreater \ \mathrm{Simplify} \ \textgreater \ 30x=90$
Finally $\mathrm{Divide\:both\:sides\:by\:}30 \ \textgreater \ \frac{30x}{30}=\frac{90}{30} \ \textgreater \ x = 3$
Therefore our solutions are y = 4, x = 3

8 0

3 years ago

Teresa, Emily, and Rhoda went to the carnival. One of them is afraid of

lorasvet [3.4K]

Answer:

Rhonda is afraid of heights

Step-by-step explanation:

The Ferris Wheel is usually a ride that goes somewhat high. Emily and Teresa rode the Ferris Wheel, while Rhonda did not. Therefore, Rhonda is the one afraid of heights.

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3 years ago

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Write an equation of a line that has a slope of 3/4and passes through point (8,7)

cluponka [151]

To answer this go to the guys link on top

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3 years ago

Find the value of x for which p || q.

Delicious77 [7]

Answer:

x = 9

Step-by-step explanation:

For the lines to be parallel, then

9x + 8 and 15x - 46 are alternate angles and congruent, thus

15x - 46 = 9x + 8 ( subtract 9x from both sides )

6x - 46 = 8 ( add 46 to both sides )

6x = 54 ( divide both sides by 6 )

x = 9

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3 years ago

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