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IrinaVladis [17]

3 years ago

7

You spend 1/5 of your income on car payment. You spend 3/8 of the remainder of your income on rent. What fraction of income issp

ent on rent?

1 answer:

Darya [45]3 years ago

7 0

Answer:

15/40

Step-by-step explanation:

1/5 = 8/ 40

3/8 = 15/40

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Solve for x. 8(9x-4)-2=3+2

gavmur [86]

So first you have to move the -2 over to the opposite side.
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Then you can simplify the right side
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Then you distribute
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8*-4=-32
so now you have...
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A man is standing at a radar base and observes an unidentified plane at an altitude 6000m flying towards the radar base at an an

liubo4ka [24]

Answer:

The speed in of the plane is 115.47 m/sec

Step-by-step explanation:

Given:

Height at which the plane is flying = 6000 m

Angle of elevation at the radar base = 30 Degrees

Angle of elevation at the radar base after one minute = 60 Degrees

To Find:

The Speed of the plane in meter per second = ?

Solution:

Let us use the tangent of the angle to find the distance (d) to a point directly below plane:

<u>when the angle is 30 degrees</u>

$tan(30) = \frac{6000}{d1}$

$d1 = \frac{6000}{tan(30)}$

$d1 = \frac{6000}{0.577}$

d1 = 10392.3 meters

<u>when the angle is 60 degrees</u>

$tan(60) = \frac{6000}{d2}$

$d2 = \frac{6000}{tan(60)}$

$d2 = \frac{6000}{1.732}\\$

d2 = 3464.1 meters

<u>distance travelled by aircraft in 1 min is </u>

=>d1 - d2

=>0392.3 - 3464.1

= 6928.2 m/min

<u>Now converting to m/sec</u>

=> $\frac{6928.2}{60}$

=>115.47 m/sec

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