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masha68 [24]
3 years ago
13

If y varies directly as x, and y=-4 when x=8, find y when x=3

Mathematics
1 answer:
enot [183]3 years ago
3 0

I believe it would be negative 9 because your subtracting by twelve again. I hope that helped

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1. -4x + 5 = 2x - 7<br> 2. 6x - 8 = 4x + 2<br> 3. -3x - 5 = 2x + 10
Svetllana [295]

Answer: 1. x=2

 2. x=5    

 3.x=-3

Isolate the variable by dividing each side by factors that don't contain the variable.

Move all terms not containing x    to the right side of the equation.

Hope this helped

7 0
3 years ago
F (x + 5) - 2(4x - 1) = 0, what is the value of x?
schepotkina [342]
It is a.1

(1+5) - 2(4(1)-1) = 0

(6) - 2(3) = 0

6 - 6 = 0

0=0
4 0
3 years ago
4/7= 5/p. What is P? Pleas solve and show you r work!
vodka [1.7K]
This is a proportion. First you take the numerator times the denominator that is already solved. In this case you will take 5 times 7 and get 35. You then take 35 divided by 4 and get your answer.

8 0
3 years ago
What is the measure of angle BAC?
KATRIN_1 [288]

Answer:

∠BAC = 105°

Step-by-step explanation:

2(5x) = 9x+21

10x = 9x+21

reduce:

x = 21

∠BAC = 5x = 105°

8 0
2 years ago
The circumference of a circle is 119.32 kilometers. What is the circle's radius?
DochEvi [55]

Answer:

58.66 is the radius of the circle

4 0
2 years ago
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