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Tju [1.3M]
2 years ago
9

X + (-x) = 0 help me plz​

Mathematics
1 answer:
andriy [413]2 years ago
7 0

x+-x = 0

x-x = 0

0 = 0

infintely many solutions

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A pilot can fly 2100 miles with the wind in the same time she can fly 1890 miles against the wind. If the speed of the wind is 2
Anna007 [38]

Answer:

475 mph

Step-by-step explanation:

Distance = rate × time

time = distance / rate

If x is the speed of the plane in still air:

2100 / (x + 25) = 1890 / (x − 25)

Cross multiply:

2100 (x − 25) = 1890 (x + 25)

Distribute and solve:

2100x − 52500 = 1890x + 47250

210x = 99750

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3 years ago
The equation F=9/5C+32 relates temperature measured in degrees Celsius, C, to degrees Fahrenheit, F. Determine wether there is a
Rama09 [41]

Answer: yes they have a proportional relationship

Step-by-step explanation:

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

Step one : let us test say c=1

F=9/5*1+32

F=9/5+32

F=1.8+32

F=33.8

Say c=2

F=9/5*2+32

F=9/10+32

F=0.9+32

F=32.9

Observe that as c increases

F reduces Hence they have a proportional relationship

-<em><u>samuelonum1</u></em>-

Not my answer/ please give brainlist

4 0
3 years ago
An amount of $350,000 is borrowed for a period of 30 years at an interest rate of 5.5%. The amortization schedule for this
Annette [7]
350,000 . 250,00 . 1,987.26
8 0
2 years ago
Please help me thanks.
daser333 [38]

y=(-2x)+5

Step-by-step explanation:

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3 years ago
Applying the properties of operations, what is the value of the expression?
Sliva [168]

Answer:

What expression are we supposed to be answering this for?

6 0
3 years ago
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