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Sergio039 [100]
2 years ago
15

Please help me this is a study island question!

Mathematics
1 answer:
Softa [21]2 years ago
5 0
The answer is B x=5
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Please help me with these two math questions! Thank you ! :)
notka56 [123]
I think it might be c hope that helps you 
5 0
3 years ago
Help me please thank you
Andrews [41]
1st is parallel

2nd is perpendicular

3rd is perpendicular

4th is perpendicular
8 0
3 years ago
A pilot flew a 400 mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed the return t
eduard

Answer: 20 mph

Explanation:

Speed is a physical quantity which is equal to the ratio between the distance covered (d) and the time taken (t):

v=\frac{d}{t}

In the first part of the problem, the plane flew a distance of d=400 mi in a time of t=2.5 h. The speed of the plane in this case was the difference between the proper speed of the plane, v, and the speed of the wind, w, since the plane flew opposite to the wind. So we can write:

v-w=\frac{400mi}{2.5h}=160 mph (1)

During the return trip, the plane flew with a speed (v+w), since the wind was on the tail, and it took 2 hours to cover the same distance:

v+w=\frac{400 mi}{2 h}=200 mph (2)

So we have two equations with two unknown variables. From (1), we get

v=160+w

Substituting into eq.(2)

(160+w)+w=200\\160+2w=200\\2w=40\\w=20 mph

So, the speed of the wind was 20 mph.

3 0
3 years ago
Read 2 more answers
Five less than a number tripled
Elenna [48]

Answer:

3(n-5)

Step-by-step explanation:

Less than indicates subtract and since 5 is less than a number <em>N</em> goes first.

Tripled goes on the outside because the number that is 5 less gets tripled

Hope this helps

3 0
2 years ago
Determine the digits of Y from these clues. The digits of Y add to 16. The first digit is 4 times the third digit. The second di
Ira Lisetskai [31]
Its the last one (the only one that applies to the first rule).
6 0
3 years ago
Read 2 more answers
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