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Oksanka [162]
3 years ago
14

Evaluate |x + y|, for x = 8 and y = -15. A. 7 B. -7 C. 23 D. -23

Mathematics
2 answers:
Ahat [919]3 years ago
6 0
It's A because 8-15 is -7 but the absolute value parenthesis make it positive 7.
Vsevolod [243]3 years ago
4 0
The correct answer will be A
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The smiths have two children. The sum of their ages is 23. The produce of their ages is 132. How old are the children?
kolezko [41]

For this case we propose a system of equations:

x: Let the variable representing the age of the first child of the Smiths

y: Let the variable representing the age of the second child of the Smiths

According to the data of the statement we have to:

x + y = 23\\x * y = 132

From the first equation we have to:

x = 23-y

We substitute in the second equation:

(23-y) * y = 132\\23y-y ^ 2 = 132\\y ^ 2-23y + 132 = 0

We find the solutions by factoring:

We look for two numbers that, when multiplied, result in 132 and when added, result in 23. These numbers are 11 and 12.

Thus, we have that the factorized equation is:

(y-11) (y-12) = 0

Thus, the solutions are:y_ {1} = 11\\y_ {2} = 12

So, we can take any of the solutions:

With y = 11

Thenx = 23-11 = 12

Therefore, the ages of the children are 11 and 12 respectively.

Answer:

 The ages of the children are 11 and 12 respectively.

6 0
3 years ago
Solve for X and y PLEASE GIVE FULL EXPLANATION HOW YOU GOT IT
Dennis_Churaev [7]

Answer:

(1, -1)

Step-by-step explanation:

we isolate y in the first equation

2x+y=1

-2x.  -2x

y=1-2x

and now we fill y into second equation

4x-2(1-2x)=6

4x-2+4x=6

8x-2=6

   +2 +2

8x=8

/8 /8

x=1

and now to find y we insert x

2(1)+y=1

2+y=1

-2.   -2

y= -1

hopes this helps

4 0
1 year ago
The front row in a movie theater has 23 seats. If you were asked to sit in the seat that occupied the median position, in which
Scorpion4ik [409]

Answer:

You would have to sit in the 12th seat. (12)

Step-by-step explanation:

The median is the middle number in a sorted, ascending or descending, list of numbers.

3 0
3 years ago
Helen draws three parallelograms. In each figure, she measures a pair of angles, as shown.
kakasveta [241]

Answer:

<em>D. In a parallelogram, opposite angles are congruent.</em>

Step-by-step explanation:

In each case, she measures two opposite angles, and they are congruent.

D. In a parallelogram, opposite angles are congruent.

6 0
3 years ago
Read 2 more answers
If 3 pots could fit in 1 flower pot and 5 flower pot could fit in 10 Garden Pot, then how many pots make 10 Garden Pots?
Leya [2.2K]

Answer:

If 3 pots could fit in 1 flower pot and 5 flower pot could fit in 10 Garden Pot, then how many pots make 10 Garden Pots?

A. 30

B .10

C. 64

D. None Of The Above

→D. None Of The Above

Explaination :

5 flower pots could fit in 10 garden pot

But 15 pots (°•°3 pots = 1 flower pot) makes 5 flower pots.

Hence,<em><u>1</u></em><em><u>5</u></em><em><u> </u></em><em><u>pots</u></em><em><u> </u></em> make 10 Garden Pots.

hope it helps :)

7 0
2 years ago
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