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Kaylis [27]
2 years ago
8

An airplane travels 6200 kilometers against the wind in 8 hours and 6840 kilometers with the wind in the same amount of time. Wh

at is the rate of the plane in
still air and what is the rate of the wind?​
Mathematics
1 answer:
lubasha [3.4K]2 years ago
4 0

Answer:

still air = 815, wind = 40

Step-by-step explanation:

x+y=against

x-y=with

8(x+y)=6200

8(x-y)=6840

Divide 8.

x-y=775

x+y=855

Subtract. 2 from 1

2y=80

y=40

x=815

Hope this helps plz hit the crown :D

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Write in terms of i<br> Simplify your answer as much as possible.<br> square root of -48
grandymaker [24]
The square root of -48 is 2 because 2x2x2x2x2x2x is not -48
7 0
2 years ago
I asked before and didn’t get an answer I really don’t understand this thanks.
dmitriy555 [2]
The answer is D, because that is what you should get when you multiply it out.

4x^2 times x^2 = 4x^4 because...

1) multiply the 4 and the one in front of the x on the second term = 4 then

2) multiply x^2 times x^2 to get x^4, not x^3, so you can immediately eliminate A and B to save time.

Now let's deal with the second part..."may or may not be" part

A polynomial is an expression with more than two algebraic terms

terms are like...
2x + 3y ---there's two terms there, eventhough the 2 and x are multiplied, it doesn't count (same with the 3 and y)
since it only have two terms, not more than two terms, it is called a binomial, not polynomial. I think that's what they mean by that

one term with a variable (y,x,and so on) is called a monomial

one term with no var is called a constant

there's many more but hope this gave you some help
3 0
2 years ago
Read 2 more answers
The point (2, 3) is on the line given by which equation below?
love history [14]
Plug in the points and see if y and x are equal to each other.

(2,3)
y= x-1
3= 2-1 
3= 1 (not the solution)

y=3x
3=3*3
3=9 (not the solution)

y=x+1
3=2+1
3=3 (solution) We can check to make sure.

y=-3x
3=-3*3
3=-9 (not the solution)

y=x+1 <em>is the answer.
</em>

I hope this helps!
~kaikers


5 0
2 years ago
Read 2 more answers
HELPPP<br><br> A. 9<br> B. 20<br> C. 16<br> D. 4
serious [3.7K]

Answer:

C 16

Step-by-step explanation:

Using ratios

3:12

12/3=4

4:x

4*4=16

x=16

4:16

hope this helps:)

6 0
2 years ago
Is y=3/4x proportional?
strojnjashka [21]

Answer:

My answer is Yes

Step-by-step explanation:

5 0
3 years ago
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