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Otrada [13]
3 years ago
15

What number is halfway between 200 and 300

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0
The number halfway between 200 and 300 is 250
blagie [28]3 years ago
7 0
250 is half way between 200 and 300
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blagie [28]

Answer:

Which one

Step-by-step explanation:

8 0
3 years ago
You earned $210 over 3 years on an account with a 7% interest rate. What was your initial deposit (principal)?
AveGali [126]

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3,000$

Step-by-step explanation:

5 0
3 years ago
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what is The ratio of boys to girls at the dance was 9 to 5. How many girls were at the dance if there were 85 girls at the dance
AleksandrR [38]

Answer: 153 boys

Step-by-step explanation:

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Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

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

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
 & (-3,0)

I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
6 0
3 years ago
If you invest 2,000 today in a bank that gives you a 4 percent annual interest rate, which of these items can you buy in seven y
postnew [5]
I=prt
i=2000 X .04 X 7
i = 560
So you earned 560 after 7 years, plus your 2000 you started with
You can get C
8 0
3 years ago
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