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Georgia [21]
3 years ago
12

PLEASE I NEED HELP ON THIS T^T

Mathematics
1 answer:
nignag [31]3 years ago
3 0

Answer:

10

Step-by-step explanation:

we can solve this using basic algebra

We set up the equation using the info that each video costs $5 and that we but 12 of them

12(1 * 5) + x = 70

(Please note: 1x = x)

12(5) + x = 70

60 + x = 70

60 - 60 + x = 70 - 60

x = 10

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Solve system using linear combination. 5x + 3y = 41 and 3x - 6y = 9 show all work.
SVETLANKA909090 [29]

Answer:

(7,2)

Step-by-step explanation:

5x + 3y = 41

3x - 6y = 9

Multiply the first equation by 2

2(5x + 3y) = 41 *2

10x +6y = 82

Add this to the second equation

10x +6y = 82

3x - 6y = 9

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

13x = 91

Divide by 13

13x/13 = 91/13

x=7

Now we can find y

5x+3y = 41

5(7) +3y =51

35+3y=41

Subtract 35 from each side

35-35+3y=41-35

3y = 6

Divide by 3

3y/3 = 6/3

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3 years ago
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olya-2409 [2.1K]
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Help againnnnnnnnnnnnnnnnnnnnnnnnn
Alexeev081 [22]

Answer:

<h2>10 inches</h2>

Step-by-step explanation:

Hypotenuse = h

h^2 = 8^2 + 6^2

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h = √100

h = 10

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

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