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ELEN [110]
3 years ago
14

Which of the following points are solutions t the equation 3x - 4y - 8 = 12?

Mathematics
1 answer:
mixas84 [53]3 years ago
3 0

the answer is x = 20/3 + 4/3y

how to: 3x - 4y - 8 = 12

3x = 12 + 4y + 8

3x = 20 + 4y

x = 20/3 + 4/3y

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Solve the system of linear equations by elimination.<br> 9x+2y=39<br> 6x+13y=−9
vodomira [7]

y = -3

x = 5

Explanation:

9x + 2y = 39  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  (2)\\ 6x + 13y =  - 9 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: ( - 3) \\  \\ 18x + 4y = 78 \\  - 18x - 39y = 27 \\  \\  - 35y = 105 \\ y =  \frac{105}{ - 35}  \\ y =  - 3 \\  \\  \\ 9x + 2y = 39 \\ 9x + 2( - 3) = 39 \\ 9x - 6 = 39 \\ 9x = 39 + 6 \\ 9x = 45 \\ x =  \frac{45}{9}  \\ x = 5

3 0
2 years ago
a bottle of hand lotion is on sale for $2.25 . If this price represents a 50% discount from the original price , what is the ori
N76 [4]
So 2.25 is 50% of the original price
let's write original price as x
50% of x = 2.25
0.5 * x = 2.25
divide both sides by 0.5
x = 4.5

The original price is 4.5

To check:
50% * (4.5) =?= 2.25
0.5 * 4.5 =?= 2.25
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Hope this helps.
6 0
3 years ago
Plz help I need the answer fast
Tanya [424]

Answer:

The domain represents a 11 month period of flower production.

Step-by-step explanation:

The domain is represented by the vertical axis.

4 0
3 years ago
I don’t kno the answer help
PolarNik [594]

Answer:

Yes

Step-by-step explanation:

It is true because the equation would be 1 is less than or equal to 3-(-4)

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3 years ago
Find the coefficient of x^2 in the expression of (x - 7)^5. a. -3430 b. -3034 c. 3034 d. 3430
statuscvo [17]

Find the coefficient of x^2 in the expression of (x - 7)^5.

a. -3430

8 0
3 years ago
Read 2 more answers
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