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katrin2010 [14]
3 years ago
12

Ana wants the mean of her test scores to be a least 85

Mathematics
2 answers:
egoroff_w [7]3 years ago
5 0
(100+70)/2

hope this helps

Zigmanuir [339]3 years ago
4 0
She would need a 100 on the first test and a 70 on the second.
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I really need help with this. You can answer this at any time if you want.​
Tcecarenko [31]

Answer:

1. a 3d rectangle

2. 40 in cubed

3. repeat

4. another repeat

Step-by-step explanation:

8 0
2 years ago
3x+4y=-23 <br> 2y-x=-19 <br> What is the solution (x,y) to the systems of equations above?
Shkiper50 [21]
If we multiply the bottom equation by 2 and move x to the right, it becomes:

4y = 2x-38

Now we can substitute it for the 4y in the top equation:

3x + (2x-38) = -23 => 5x = -23+38 => 5x = 15 => x=3

Then 4y = 2*3-38 => y = -8

So the solution is (3,-8)
3 0
3 years ago
Simplify 3^2×3^4×3^6​
Dennis_Churaev [7]

The Answer is 513,441

4 0
3 years ago
Write the equation of a line in slope-intercept form parallel to the line y = -2x + 7 and contains (-1, 3).
JulsSmile [24]

Answer:

The answer is

<h2>y = - 2x + 1</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

From the question the original line is

y = - 2x + 7

Comparing with the general equation above

Slope = - 2

Since the lines are parallel their slope are also the same

Slope of parallel line = - 2

The equation of the line using point (-1, 3) and slope - 2 is

y - 3  =  - 2(x + 1) \\ y - 3 =  - 2x - 2 \\ y =  - 2x - 2 + 3

We have the final answer as

y =  - 2x + 1 \\

Hope this helps you

7 0
3 years ago
Amanda runs a consultancy firm. For a given year, her income from services was $30,700. Direct expenses incurred by her for the
defon
The answer is C 
30700-10500-500=19700 thats how much she walks away with. 
Also can i have brainliest answer if i am correct which i believe i am. 
8 0
3 years ago
Read 2 more answers
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