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erastovalidia [21]
4 years ago
13

What times what equals -20 that also equals -1 when added

Mathematics
1 answer:
goldfiish [28.3K]4 years ago
8 0
-5 x 4 = -20
-5 + 4 = -1
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Please help...given that elm and oak street are parallel, find m
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Answer:

<em>102°</em>

Step-by-step explanation:

(3x - 12)° + (2x + 2)° = 180°

5x - 10 = 180 ⇒ x = 38

m∠A = (3x - 12)°

<em>m∠A</em> = (3×38 - 12)° = <em>102°</em>

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Anestetic [448]

Answer:

you can decide if you want this answer or not  :D

Step-by-step explanation:

1st  , notice that our problem is about an eight part whole.  I mean,  the questions are around an object of 8 parts.  so start thinking 1/8 ths

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B) asks about  P(2 or 6 )   [ btw, p here stands for probability ]  

so it's  1/8 + 1/8 =  1/4  or one quarter of the time we would get a 2 or a 6

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C)   asks  about P( greater than 4)  or  P( >4)   so that's the whole left side of the circle :0  

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3 0
3 years ago
Divide 10 into two parts in such a way that when a certain one of these parts is divided by the other and the fraction is multip
finlep [7]

Answer:

The fraction is \frac{x}{10-x}\times x where the numeric value of x = 6 and 10-x =4.

Step-by-step explanation:

Given:

A number 10 we have to divide it into two parts and then when one part is divided by other with multiplication of its numerator the number obtained is 9.

Lets the number in numerator be x

Then

The number in denominator is 10-x

According to the question:

⇒ \frac{x}{10-x}\times x =9

⇒ \frac{x^2}{10-x} =9

⇒ x^2=9(10-x)  

⇒ x^2+9x-90=0

⇒ x^2+15x-6x-90=0 solving by middle term splitting.

⇒ x(x+15)-6(x+15)=0

⇒ (x-6)(x+15)=0

⇒ x=6,-15

Discarding the negative values.

⇒ x=6

Check:

So the fraction is \frac{x}{10-x} \times x =9

then,

⇒ \frac{6}{10-6} \times 6 =9

⇒ \frac{6\times 6}{4} =9

⇒ \frac{36}{4}=9

⇒ 9=9

Left terms= Right terms

The fraction is \frac{x}{10-x}\times x where the number 'x' = 6 and 10-x = 4.

6 0
3 years ago
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