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slamgirl [31]
3 years ago
13

one strand of lights for a Christmas tree 250 light bulbs. If 20% of the light bulbs are green how many light bulbs on the stran

d of light are green?
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer:

20% of 250 is 50

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1. If the same number is added to the numerator and subtracted from the denominator of 23/12, the resulting fraction is equivale
ICE Princess25 [194]

Answer:

The number is -2

Step-by-step explanation:

step 1

Find the reciprocal of 2/3

Remember that when multiply a number by its reciprocal, the result is 1

so

The reciprocal of 2/3 is 3/2

step 2

Let

x-----> the number added to the numerator and denominator

\frac{23+x}{12-x}=\frac{3}{2}

Solve for x

2(23+x)=3(12-x)\\46+2x=36-3x\\2x+3x=36-46\\5x=-10\\x=-2

step 3

verify

\frac{23+x}{12-x}

substitute x=-2

\frac{23-2}{12+2}

\frac{21}{14}

Simplify

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therefore

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8 0
3 years ago
Use the number line to add the fraction.
horrorfan [7]

Answer:

1/8

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
What is the answer for this problem
Margarita [4]
The answer is 2 and negative 9
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Multiply the polynomial (x-5)(x^2+4x-2)
madreJ [45]

Answer:

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Step-by-step explanation:

7 0
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What is the quotient (3x4 + 4x – 15) + (x + 3)?
Hoochie [10]

Answer:

3x-5 and r=0

Step-by-step explanation:

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not 3x-1 , r=1

multiply the divisor with 3x  we will get to cancel out the first term of dividend

Now after solving we will get  

Now, multiply the divisor by -5 we will get -5x-15 which will cancel the entire dividend.

5 0
3 years ago
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