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4 years ago

Please help! If you cant see it very well it’s

Mathematics

1 answer:

Oksi-84 [34.3K]4 years ago

6 0

I think it 1 /8
this is what I did
3/8 - 2/1 = 1/8

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Quadratic Equation

Natasha_Volkova [10]

Step-by-step explanation:

The sum of ages of two friends is 13 years.

The product of their ages is 42.

Let the age of 1st friend and 2nd friend is x, y respectively.

1 st condition= The sum of ages of two friends is 13 yrs.

i.e x+y = 13........ (I)

2nd condition= The product of their ages is 42.

i.e X*y = 42........(ii)

From equation (I)

X+y = 13

or, X = 13-y........ (iii)

Putting the equation (iii) in equation (ii).

X*y= 42

(13-y) * y = 42

13y - y^2 = 42

${y}^{2} - 13y + 42 = 0$

${y}^{2} - (7 + 6)y + 42= 0$

${y}^{2} - 7y - 6y + 42 = 0$

$y(y - 7) - 6(y - 7) = 0$

$(y - 6) (y - 7) = 0$

Either; y-6 = 0

y = 6

Or;

y-7=0

y = 7

Keeping the value of y as "7" in equation (ii)

x*y = 42

7x = 42

X = 42/7

Therefore, the value of X is 6.

Therefore, either 1st friend is 6 years and 2nd is 7 years.

Hope it helps...

7 0

3 years ago

Find the distance between the two points. (9,7) and (-1,31)

Bond [772]

Answer:

26 hope this helps

Step-by-step explanation:

5 0

4 years ago

Assume you are working with a standard deck of 52 cards. There are 13 cards (2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and

NemiM [27]

Answer:

$P(9\cup queen)=\frac{2}{13}$

Step-by-step explanation:

Total number of cards $=52$

Total cards of $9$ $=4(1\ club,1\ diamond,1\ heart,1\ spades)$

Total cards of Queen $=4(1\ club,1\ diamond,1\ heart,1\ spades)$

Total number of elements in $9\cup Queen$ $=8$

$P(9\cup queen)=\frac{elements\ in\ 9\cup queen}{Total\ number\ of\ elements}\\\\P(9\cup queen)=\frac{8}{52}=\frac{2}{13}$

7 0

3 years ago

The product of 4x and O is.

Brut [27]

Answer:

anything x 0 is 0

Step-by-step explanation:

3 0

3 years ago

What is the distance from 7 to 0? O A. 7, because 171 = 7 Jurid O B. 7, because 171 = 7 O c. 7, because |-71 = -7 O D. -7, becau

kozerog [31]

The distance from 7 to 0 is 7 because the absolute value of 7 is 7.

Correct Answer: A

7 0

1 year ago