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Maurinko [17]
3 years ago
12

I really hope someone can hekp me with my hwit's linear equations...

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0

You first should isolate the "y" in the equation.

3x - 2y = 6 Subtract 3x on both sides

3x - 3x - 2y = 6 - 3x

-2y = 6 - 3x  Divide -2 on both sides to get "y" by itself

y = \frac{6-3x}{-2}

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


This equation is:

y = mx + b

"m" being the slope, "b" being the y-intercept (when x = 0)

The y-intercept is -3 in the equation. So you can eliminate choices A and C.

You can plug in any of the numbers of x(-2 , -1 , 0, 1, 2) into this equation, to find it's y value.

You can plug in 1 for x:

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

y = -3 + \frac{3}{2} (1)

y = -3 + \frac{3}{2}  Make the denominators the same

y = \frac{-6}{2} +\frac{3}{2} = \frac{-3}{2}


Your answer is B

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The ordered pair of the parking lot is the coordinates of the lot in the coordinate plane

Parking lot B is located in the ordered pair (-3,4)

<h3>How to determine the ordered pair of lot B</h3>

From the figure, we have the following highlights

Parking lot B is located at x = -3 on the horizontal axis, and it is located at y = 4 on the vertical axis.

So, we have:

(x,y) = (-3,4)

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2 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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A turtle and a rabbit engage in a footrace over a distance of 4.00 km. The rabbit runs 0.500 km and then stops for a 90.0-min na
Oxana [17]

Answer:

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(b) 9 km/h

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where d is the total distance traveled and t is the total time needed.

d=\frac{4.00}{1.75}=2.29 km/h

For part (b) you have to calculate the running time (T) , which is the total time of the race minus the nap time:

The nap time in hours is:

90/60 = 1.5 h (because there are 60 minutes in one hour)

The running time is:

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t1+t2 = T

t1+t2 = 0.25

You have to apply the formula d=vt before and after the nap:

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0.50 = v1t1

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3.50=v2t2

But v2=2v1 (because after the nap the rabbit runs twice as fast)

You have to solve the system of equations:

t1=0.25-t2 (I)

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2v1t2=3.50 (III)

Replacing (I) in (II)

v1(0.25-t2)=0.50

Applying distributive property and solving:

0.25v1-v1t2=.050

For (III) you have that v1t2=3.50/2=1.75. Hence:

0.25v1-1.75=0.50

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<img src="https://tex.z-dn.net/?f=%5Cfrac15%20%284%20-%203x%29%20%3D%5Cfrac15%20%283x%20-%204%29" id="TexFormula1" title="\frac1
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Answer:

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Step-by-step explanation:

In pic

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