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vesna_86 [32]
3 years ago
10

PLEAAAASE HELP!!!!!!

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0
The answer you have selected in the photo is correct
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What is the following product
frosja888 [35]
I would pick C sorry if it’s wrong
3 0
3 years ago
Read 2 more answers
A plane flew 360km in 3 hrs when flying with the wind.With no change in the wind,the return trip took 4 hrs.Find the speed of th
morpeh [17]
Speed of the plane: 250 mph
Speed of the wind: 50 mph
Explanation:
Let p = the speed of the plane
and w = the speed of the wind
It takes the plane 3 hours to go 600 miles when against the headwind and 2 hours to go 600 miles with the headwind. So we set up a system of equations.
600
m
i
3
h
r
=
p
−
w
600
m
i
2
h
r
=
p
+
w
Solving for the left sides we get:
200mph = p - w
300mph = p + w
Now solve for one variable in either equation. I'll solve for x in the first equation:
200mph = p - w
Add w to both sides:
p = 200mph + w
Now we can substitute the x that we found in the first equation into the second equation so we can solve for w:
300mph = (200mph + w) + w
Combine like terms:
300mph = 200mph + 2w
Subtract 200mph on both sides:
100mph = 2w
Divide by 2:
50mph = w
So the speed of the wind is 50mph.
Now plug the value we just found back in to either equation to find the speed of the plane, I'll plug it into the first equation:
200mph = p - 50mph
Add 50mph on both sides:
250mph = p
So the speed of the plane in still air is 250mph.
6 0
2 years ago
What is the answer to this problem <br>3 over 5=c+1 over 4
balandron [24]
The steps are on the picture! Let me know if you have any questions

5 0
3 years ago
PEASE PLEASE HELP &amp; EXPLAIN
Vikki [24]

Answer:the answer is NO.

Step-by-step explanation:

Because the number 9, repeats itself in the domain.

7 0
3 years ago
11. What method can be used to prove these two triangles are congruent?
zubka84 [21]
This would be SAS. If that’s wrong I’m sorry but it’s the only thing that makes sense, the dashes indicate they are the same and then the circle at the point also indicates that they’re the same so you have two sides and one angle that are the same, so it should be SAS.
5 0
2 years ago
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