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Monica [59]
3 years ago
13

What does -3 1/6+6 2/3 equal

Mathematics
2 answers:
Fittoniya [83]3 years ago
7 0

Answer:

3 1/2

Step-by-step explanation:

-3 1/6+6 2/3

We need to get a common denominator of 6

-3 1/6 + 6 2/3 *2/2

-3 1/6 + 6 4/6

Since the signs are different, we subtract and take the sign of the larger number

6 4/6 - 3 1/6 = 3 3/6 = 3 1/2

The sign of the larger number was positive so the answer is positive

3 1/2

Step2247 [10]3 years ago
6 0

Answer:

3½

Step-by-step explanation:

-3 - 1/6 + 6 + 2/3

3 + 4/6 - 1/6

3 + 3/6

3½

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The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a
zhenek [66]

Answer:

The intensity on a screen 70 ft from the light is 1.728 foot candle.

Step-by-step explanation:

Given that,

The magnitude of  intensity I of light varies inversely as the square of the magnitude of distance D from the source.

That is

I\propto \frac{1}{D^2}

Then,

\frac{I_1}{I_2}=\frac{D_2^2}{D_1^2}

Given that,

The magnitude of intensity of illumination on a screen 56 ft from a light is 2.7 foot-candle.

Here,

I_1=2.7 foot-candle, D_1= 56 ft

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The intensity on a screen 70 ft from the light is 1.728 foot candle.

3 0
3 years ago
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