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kirill [66]
4 years ago
12

Two planes leave an airport at the same? time, one flying? east, the other flying west. the eastbound plane travels 90 mph slowe

r. they are 3480 mi apart after 4hr. find the speed of each plane.
Mathematics
1 answer:
Law Incorporation [45]4 years ago
5 0

2x + 2(x-90) = 3480

2x + 2x - 180 = 3480

4x = 3660

x = 915 mph Plane 1 westbound

915-90 = 825 mph plane 2 eastbound

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X squared minus 7x plus 10 equals 0
joja [24]
X² - 7x + 10 = 0

Let's factor out the equation first.

x² - 7x + 10

x             -2
x             -5

This factoring of (x-2)(x-5) fit the equation.

(x-2)(x-5) = 0

One of the factors must equal 0 as to equal zero.

Either x - 2 = 0 or x - 5 = 0

x - 2 = 0 
x = 2

x - 5 = 0
x = 5

The two answers are x = 2 or x = 5. Hope this helps!
3 0
3 years ago
2/3 + y − 1/9 = 7/9 <br><br> y=?
Ksenya-84 [330]

Question:

2/3 + y - 1/9 = 7/9

y = ?

Solution:

Find A Common Denominator For 2/3 Which Is 6/9

6/9 + 2/9 = 8/9

8/9 - 1/9 = 7/9

6/9 + 2/9 - 1/9 = 7/9

Final Answer:

y = 2/9

Hope This Helps!

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6 0
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Kruka [31]

Answer:

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Step-by-step explanation:

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steposvetlana [31]

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The answer is 7.41666667

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