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lianna [129]
3 years ago
6

2. y - 8 = 15 y -0 =

Mathematics
1 answer:
Wewaii [24]3 years ago
6 0

Answer:

23

Step-by-step explanation:

I'm going to start by solving the first equation like so,

y - 8 = 15        (Remember what we do to one side we MUST do to the other)

<u>  +8    +8 </u>

y = 23

So know we know y = 23  What we have to do now is replace 23 for y in the second equation.

y - 0 = ?

23 - 0 = 23  

Hope that helps and have a great day!

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 what is perpendicular to y= 3x -9 and passes through the point (3,1)
GREYUIT [131]
(3,1) , \ \ y= 3x -9 \\ \\ The \ slope \ is :m _{1} =3 \\ \\ If \ m_{1} \ and \ m _{2} \ are \ the \ gradients \ of \ two \ perpendicular \\ \\ lines \ we \ have \ m _{1} \cdot m _{2} = -1 \\ \\3\cdot m_{2}=-1 \ \ /:3\\ \\ m_{2}=-\frac{1}{3}

\Now \ your \ equation \ of \ line \ passing \ through \ (3,1) would \ be: \\ \\ y=m_{2}x+b \\ \\1=-\frac{1}{ 3} \cdot3 + b

1=-1+b\\ \\ b=1+1\\ \\b=2 \\ \\ y =- \frac{1}{3}x+2


6 0
3 years ago
I posted 3 times already please help me. <br> At least try it.<br> 15 points <br> Photo above
natulia [17]

Answer:

The answer is, "The image will be in Quadrant II"

Step-by-step explanation:

When is comes to rotating something 180, whether it's clock-wise or counter clock-wise it will end in the opposite place.

7 0
3 years ago
Read 2 more answers
It will take Adam four hours to drive to Disney Park, and 2.5 times less time if driving 45 mph faster. What is the distance Ada
Mashcka [7]
<h2>Hello!</h2>

The answer is:

The distance to over by Adam to get to the park is 108 miles.

<h2>Why?</h2>

To solve the problem, we need to write two equations using he given information about the times and his speed.

So,

For the first equation we have: Travel to Disney Park

time=4hours

Distance=v*4hours

For the second equation we have: Travel back from Disnery Park

time=4hours-2.5hours=1.5hours

Speed=v+45mph

Distance=(v+45mph)*1.5hours

Then, if Adam covered the same distance going and coming back, we have:

v*4hours=(v+45mph)*1.5hours

v*4hours=v*1.5hours+45mph*1.5hours

v*4hours-v*1.5hours=45mph*1.5hours

v*2.5hours=67.5miles

v=\frac{67.5miles}{2.5hours}=27\frac{miles}{hour}=27mph

We have that the speed when he was going to Disney Park was 27 mph.

Now, to calculate the distance, we need to substitute the obtained speed in any of the two first equations.

Therefore, substituting the speed into the second equation, we have:

Distance=(v+45mph)*1.5hours

Distance=(27mph+45mph)*1.5hours=72mph*1.5hours=108miles

Hence, we have that the distance that Adam should cover to get to the park is 108 miles.

Havea nice day!

8 0
4 years ago
Ill mark brainlist plss help
Lynna [10]

Answer:

it will be 14.10 because 2.35x 6 equals 14.10$

Step-by-step explanation:

7 0
3 years ago
I need help, please! ASAP.
dmitriy555 [2]

Answer:

Formula for percent change is C = {x_2 - x_1}/{x_1}  

C = relative change

x_1 = initial value

x_2 = final value

Step-by-step explanation:

3 0
3 years ago
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