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dybincka [34]
3 years ago
9

Help please, i really need it​

Mathematics
1 answer:
belka [17]3 years ago
3 0

Answer:

1/2

Step-by-step explanation:

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-6y + 12 = - 66<br> I feel like I lost my brain today I can’t think right... can you help me out
Igoryamba

Answer:

- 6y + 12 =  - 66 \\  - 6y =  - 66 - 12 \\  - 6y =  - 78 \\  y =  - \frac{ - 78}{ - 6}  \\ y =   13

6 0
3 years ago
Read 2 more answers
3x+y=-4<br> 3x-4y=6<br><br> Solve the simultaneous equation
Nezavi [6.7K]

Good morning ☕️

Answer:

(\frac{-2}{3} , -2)

Step-by-step explanation:

3x+y=-4   (1)

3x-4y=6  (2)

<em><u>solving by elimination:</u></em>

(1) - (2) ⇒

3x + y  = -4

3x - 4y = 6

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0 + 5y  = -10

5y = -10 ⇔ y = -2

(2) ⇒ 3x-4y=6  ⇒ 3x-4(-2)=6  ⇒ 3x = 6 - 8 = -2 ⇒ x = -2/3

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3 0
3 years ago
Read 2 more answers
David uses 1/2 cup of apple juice for every 1/4 cup of cranberry juice to make a fruit drink. Enter the number of cups of apple
mario62 [17]

Answer:

2 cups of apple juice

Step-by-step explanation:

In order to get one cup of cranberry juice, you would need to add the ratio, 1/4, four times. Since for every 1/4 cup of cranberry juice there is 1/2 cup of apple juice, add 1/2 four times

1/2 + 1/2 + 1/2 + 1/2 = 4/2 = 2 cups

8 0
3 years ago
Y=x-4 and -4x-6y=-16
denis-greek [22]

Answer:

x=4

y=0

Step-by-step explanation:

5 0
3 years ago
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Find A, B, and C <br> Help ASAP!<br> {10 points up}
Rama09 [41]

so we have a 60-30-90 triangle (top one)

so since we know 6 is x (the side on the right angle and 60 degrees)

b is 2x or 2(6) = 12

a is x√3 = 6√3


for C I need to use a 45 45 90 triangle

Since b is 12 and its x√2  to find x we should write it as

x√2 = 12

√2     √2  divide by √2

x = 12/√2  but we must rationalize the denominator

12/√2  times √2/√2  = 12√2/2 and that's c


6 0
3 years ago
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