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Mkey [24]
3 years ago
13

In 45 years Gabriela will be 4 times as old as she is right now how old is she right now

Mathematics
2 answers:
andre [41]3 years ago
7 0

Answer:

15

Step-by-step explanation:

khan academy answer

IrinaK [193]3 years ago
6 0

Answer:

15

Step-by-step explanation:

She is currently 15. 45 years from now she will be 60. 60 is 4 times her current age. So right now, she is 15

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Please help! :) Need answer fast!
Vlada [557]

Answer:

x = 3

y = 2

Step-by-step explanation:

When 2 triangles are congruent, they will have exact same 3 sides length and exact same 3 angles measure.

So we can say:

-2x + 6y = 6

and

-7x + 8y = -5

Let's multiply first equation by 7 and 2nd equation by -2, to get:

7 [-2x + 6y = 6] = -14x +42y = 42

and

-2 [-7x + 8y = -5] = 14x - 16y = 10

Now adding these 2 new equations and solving for y:

-14x +42y = 42

14x - 16y = 10

----------------------

26y = 52

y = 52/26

y = 2

Now we put y = 2 into 1st equation (or any other) and solve for x:

-2x + 6y = 6

-2x + 6(2) = 6

-2x + 12 = 6

6 = 2x

x = 6/2

x = 3

5 0
3 years ago
Answer question 11 for me.
Lina20 [59]

Answer:

that they both are 20

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What does X equal to ?
Ierofanga [76]

Answer:

x= 15

Step-by-step explanation:

We can use cross products to solve this problem

7     2x+5

-- = --------

3       x

7x = 3(2x+5)

Distribute

7x = 6x +15

Subtract 6x from each side

7x-6x = 6x-6x+15

x = 15

6 0
3 years ago
Subtract -2k^3 + k^2 - 9 from 5k^3 - 3k + 7.
Lady_Fox [76]
5k^3 - 3k + 7 + <span>2k^3 - k^2 + 9 
= 7k^3 - k^2 -3k + 16</span>
3 0
3 years ago
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mixas84 [53]

Answer:

ALEKS Corporation

Software company

Step-by-step explanation:

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2 years ago
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