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liq [111]
3 years ago
11

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per

hour. How many hours will it take for the planes to be 2451 miles apart?
Mathematics
1 answer:
Hitman42 [59]3 years ago
3 0

plane 1 travels 395 miles in 1 hour

plane 2 travels 422 miles in 1 hour

together, they travel (395+422) 817 miles in 1 hour

to have 2451 miles between then, they'd need to travel

\frac{2451 miles}{817 miles}=3

so in 3 hours, they'll be 2451 miles apart

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4-x/2=6 solve for x. <br><br><br> jkjhjk
ra1l [238]
(-x)+2•4/2=6
-x+8/2=6
-x+8=12
-x=4
x=-4
4 0
3 years ago
Read 2 more answers
Module 1: directions: respond to this question to demonstrate your understanding of the topic/content. be sure to provide adequa
olya-2409 [2.1K]

The slope intercept form of the line whose points are (1,5) and (-2,-4) is y=3x+2.

Given two points of a line (1,5) and (-2,-4).

We have to form an equation in slop intercept form.

Equation is relationship between two or more variables which are expressed in equal to form.Equations of two variables looks like ax+by=c.

Point slope form of an equation is y=x+mc where m is slope of the line.

From two points the formula of equation is as under:

(y-y_{1})=(y_{2} -y_{1} )/(x_{2} -x_{1} )*(x-x_{1})

where (x_{1} ,y_{1} ) and (x_{2} ,y_{2} ) are the points.

Putting the values of x_{1}=1, x_{2}=-2, y_{1}=5 and y_{2}=-4.

y-5=(-4-5/-2-1)*(x-1)

y-5=-9/-3*(x-1)

y-5=3(x-1)

y-5=3x-3

y=3x-3+5

y=3x+2

Hence the slope intercept form of the line having points (1,5)(-2,-4) is y=3x+2.

Learn more about equation at brainly.com/question/2972832

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4 0
2 years ago
The product of a number and -7 is at most -70. what is inequality 18 points
zimovet [89]

Answer:

Inequality :

-7x\le \:-70

Step-by-step explanation:

Let the unknown number be x

at most -70 = ≤ -70

x\times(-7) \leq -70\\\\-7x\leq -70

Solving further  :

-7x\le \:-70\\\\\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}\\\\\left(-7x\right)\left(-1\right)\ge \left(-70\right)\left(-1\right)\\\\Simplify\\\\7x\geq 70\\\\\mathrm{Divide\:both\:sides\:by\:}7\\\\\frac{7x}{7}\ge \frac{70}{7}\\\\Simplify\\\\x \geq 10

3 0
3 years ago
3-7=<br> 4-6=<br> 3+-6=<br> 4--1=<br> -5+-5=<br> -3+5=<br> -4-6=
kipiarov [429]

Answer:

Answers are below

Step-by-step explanation:

3 - 7 = -4

4 - 6 = -2

3 + -6 = -3

4 - - 1 = 5

-5 + -5 = -10

-3 + 5 = 2

-4 -6 = -10

Hope this helps!!

4 0
3 years ago
HELPPPPP
soldi70 [24.7K]

x=50  

Step-by-step explanation:

angle 1 and 3 are corresponding angles that menas they equal the same

so set it up like this 2x+10=110 solve for x

move over the 10, subtract 10 from 110 you get 100 and divide by 2

you get 50.

8 0
2 years ago
Read 2 more answers
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