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Lady_Fox [76]
3 years ago
15

Jolene earned a 75% on her last quiz. If there were 8 questions, how many did she answer correctly

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

6

Step-by-step explanation:

100% / 8 questions= each question is worth 12.5 points

12.5*6=75

Therefore 6 were answered correctly

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If you add a negative
creativ13 [48]

Answer:

Then you don't change the sign.

Two like signs become a positive sign.

Two unlike signs become a negative sign.

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3 years ago
9. Find the slope of a line parallel to 3x - y = 1.​
Vadim26 [7]

Answer:

slope = 3

Step-by-step explanation:

The slope of a line parallel to the given equation share the same slope. Note the slope intercept formula:

y = mx + b

y = (x , y)

m = slope

x = (x , y)

b = y-intercept

First, isolate the variable, y. Subtract 3x from both sides:

3x (-3x) - y = 1 (-3x)

-y = -3x + 1

Next, divide -1 from both sides:

(-y)/-1 = (-3x + 1)/-1

y = 3x - 1

You are solving for the slope of a line parallel to the given equation. Since you are solving for parallel, the slope would be shared.

3 would be the slope of the line.

~

3 0
3 years ago
What does 3(13-2a)=-3+a =????
kirza4 [7]
3(13-2a)=-3+a
39-6a=-3+a
42=7a
a=6

3 0
3 years ago
Read 2 more answers
-5(20x)=100 brainliest for the first/best answer
strojnjashka [21]

Answer:

-1

Step-by-step explanation:

-100x = 100

-x = 100/100

-x = 1

x = -1

5 0
3 years ago
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Is this equation standard form of an ellipse or circle?
Usimov [2.4K]
The standard form equation for a circle is

(h-x)^2+(k-y)^2=r^2

where (h, k) is the center and r is the radius.

The standard form equation for an ellipse is

\frac{(x-h)^2}{a^2}} + \frac{(y-k)^2}{b^2} = 1

(center h, k and major and minor axes a and b)

This equation is standard form for neither, but might be general form for one.

-3x^2-3y^2-12x-12y+24=0 \\ -3(x^2+y^2+4x+4y)=-24 \\ x^2+4x+y^2+4y=8\ (complete\ the\ squares)\\ (x^2+4x+4)+(y^2+4y+4)=8+4+4\\ (x+2)^2+(y+2)^2=16 \\ Circle\ with\ radius\ 4\ and\ center\ (2,\ 2)
4 0
3 years ago
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