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seropon [69]
3 years ago
12

If y varies directly as x and y = 8 when x = 4, what is the value of y when x = 16?

Mathematics
1 answer:
const2013 [10]3 years ago
5 0

Answer:

32

Step-by-step explanation:

x=4 was multiplyed by 4 to get to x=16 so you have to multiply y=8 by 4 to get the answer which is 32

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Which is the equation of a line that has a slope of -2/3 ans passes through the point (-3, -1)
kupik [55]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - \frac{2}{3}, hence

y = - \frac{2}{3} x + c ← is the partial equation

To find c substitute (- 3, - 1) into the partial equation

- 1 = 2 + c ⇒ c = - 1 - 2 = - 3

y = - \frac{2}{3} x - 3 ← is the equation of the line

5 0
3 years ago
A company produces a cardboard box in the shape of a rectangular prism. The surface area of the box is represented by S=10x2, wh
OLEGan [10]

S = 10x^2

S/10 = x^2

+or-sqrt(S/10) = x

+or- sqrt(S10)/10 = x

so

_inverse = +or-sqrt(10x)/10

5 0
3 years ago
How to eliminate this using multiplication?
Greeley [361]
-2a + 3b = 9 / x 2;

-4a + 6b = 18;

Then, -4a + 6b = 18
          +4a - 2b = 3 
          __________________(+)

We obtain 4b = 21;

b = 21/4;

-2a + 63/4 = 9;

-8a + 63 = 36;

-8a = - 27;

a = 27/8 ;

           
5 0
3 years ago
Question 7 of 12 Solve: 3x- 8 = 6(1 - 2x) + 16 O A. x = 2 O B. x = 5 O C. x= -2 O D. There are infinitely many solutions.
Murljashka [212]

Answer:

A. x =2

Step-by-step explanation: Rearrange terms 3x - 8 = 6 ( 1 - 2x ) + 16 ---> 3x - 8 = 6 ( -2x + 1 ) +16

Distribute

Add the numbers

Add 8 to both sides of the equation

Simplify

Add 12x to both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify -------> x=2

6 0
3 years ago
18. i have the answeres but i am not sure​
Zielflug [23.3K]
I can’t read your hand writing
5 0
3 years ago
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