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exis [7]
4 years ago
15

-9=x-(-17) solve math

Mathematics
2 answers:
slamgirl [31]4 years ago
7 0
<span>-9=x-(-17)
-9 = x + 17 
subtract both sides by 17
-9 - 17 = x + 17 - 17
simplify
-26 = x

answer: x = -26</span>
evablogger [386]4 years ago
4 0
-9=x-(-17)
-9=x+17
-9-17=x
x=-26
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Hello I need help with some math homework. PLEASE HELP!!! I'll send an attachment.
soldier1979 [14.2K]
PART 1.
Going westward:
Distance: 2400 miles
Rate (this is speed): (450-wind_speed) mph
Time: distance / speed = 2400 / (450-wind speed)

Going eastward:
Distance: 2400 miles
Rate (this is speed): (450+wind_speed) mph
Time: distance / speed = 2400 / (450+wind speed)


PART 2
Formula for speed:
speed = distance / time
Now we solve this for time:
time = distance / speed
11h = 2400 / (450+-wind_speed)

+- sign is put because in one case wind increases speed of plane and in other case it decreases speed.

PART 3
To solve for wind_speed we start by rearranging formula so that we have wind_speed on left side:
(450+-wind_speed) = 2400 / 11
(450+-wind_speed) = 218mph
To fly this distance in 11h speed of plane must be 218mph.
The only way to get this solution is if we substract wind speed:
450-wind_speed = 218
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5 0
3 years ago
Marica purchase three doughnuts for 2 dollers each the cashier told her when you buy 2 donuts, you get the third one half price
insens350 [35]
What's the question?
6 0
3 years ago
A truck requires 1 gallon of gas to cover a distance of 10 miles. How
sweet-ann [11.9K]

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20

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4 0
4 years ago
Please answer this question
nydimaria [60]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
If the circumference is 16pi then what is the area
salantis [7]

Answer:

A = 64 pi

Step-by-step explanation:

The circumference can be found by

C = 2 * pi *r

16 pi = 2 * pi *r

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16 pi/ 2 pi = 2 * pi *r/ 2 pi

8 =r

The radius is 8

To find the area

A = pi r^2

A - pi (8)^2

A = 64 pi

8 0
3 years ago
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