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3 years ago

5

Braic equation. two airplanes leave chicago at the same time and fly in opposite directions. if one travels at 490 miles per hou

r and the other at 470 miles per hour, how long will it take for them to be 4,800 miles apart

1 answer:

Umnica [9.8K]3 years ago

4 0

I would prominently take 10 hours til they are 4,800 miles apart

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CHALLENGE QUESTION: Bruce orders the Fried Chicken dinner and a coke at the diner.

Tomtit [17]

Answer:

$14.24

Step-by-step explanation:

9.89+1.99=$11.88

11.88*1.07=12.71

12.71*1.12=$14.24

Hope this helps!

7 0

2 years ago

klasskru [66]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

Step-by-step explanation:

Considering the system of the equations

$\begin{bmatrix}2x-7y=12\\ -x+15y=-6\end{bmatrix}$

$\mathrm{Isolate}\:x\:\mathrm{for}\:2x-7y=12$

$2x-7y+7y=12+7y$

$2x=12+7y$

Divide both sides by 2

$\frac{2x}{2}=\frac{12}{2}+\frac{7y}{2}$

$x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}x=\frac{12+7y}{2}$

$\begin{bmatrix}-\frac{12+7y}{2}+15y=-6\end{bmatrix}$

$-\frac{12+7y}{2}+15y=-6$

$\mathrm{Multiply\:both\:sides\:by\:}2$

$-\frac{12+7y}{2}\cdot \:2+15y\cdot \:2=-6\cdot \:2$

$-\left(12+7y\right)+30y=-12$

$-12+23y=-12$

$-12+23y+12=-12+12$

$23y=0$

$\mathrm{Divide\:both\:sides\:by\:}23$

$\frac{23y}{23}=\frac{0}{23}$

$y=0$

$\mathrm{For\:}x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}y=0$

$x=\frac{12+7\cdot \:0}{2}$

$x=\frac{12}{2}$

$x=6$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

4 0

3 years ago

What is the answer?

Vika [28.1K]

Answer:

B

Step-by-step explanation:

7 0

2 years ago

Write the following equations in slope-intercept form.5x+y=30

Maurinko [17]

Answer:

y=-5x+30

Step-by-step explanation:

I HOPE THIS HELPS

BRAINLIEST PLSSS I NEED IT SO BAD

4 0

3 years ago

Read 2 more answers

What is the slope of the line through the points (0, 0) and (2, 6)

EleoNora [17]

For this problem, you would use the slope formula, or m=(y2-y1)/(x2-x1). So, let's put in what we know.

The x's and y's correspond with our coordinates. So let's plug that in:

m=(6-0)/(2-0)
m=(6)/(2)
m=3

So, the slope of your line is 3.

6 0

3 years ago