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prohojiy [21]
3 years ago
11

WILL GIVE BRAINLIEST!!!

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
8 0

Answer:


Step-by-step explanation:

.5x + .65y = 15 it is c

ICE Princess25 [194]3 years ago
4 0

Answer:

Your answer is C


Step-by-step explanation:


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Situation 1:
Ede4ka [16]

Answer:

Step-by-step explanation:

5 0
3 years ago
Mr. Sánchez owns a square field. The side lengths are 0.9 kilometers. There are 1,980 prairie dog burrows in the fields. What is
Simora [160]
The first thing we are going to do is find the area of the field. To do this we are going to use the area of a square formula: A=s^2
Were 
A is the area in square kilometers 
s is one of the sides of the square
We know for our problem that  the side lengths of the field are 0.9 kilometers, so s=0.9. Lets replace that value in our formula to find A:
A=(0.9)^2
A=0.81 

Now, to find the population density of the filed, we are going to use the population density formula: P_{d}= \frac{I}{A}
where
P_{d} is the population density in <span>in burrows per square kilometer
</span>I is the number of burrows 
A is the are of the field
We know that I=1980 and A=0.81, so lets replace those values in our formula:
P_{d}= \frac{1980}{0.81}
P_{d}=2444.4

We can conclude that the <span>density of prairie dog burrows is approximately 2444 burrws per square kilometer.</span>
5 0
3 years ago
⦁ Find the sum of the series . 15 sigma n=1, (2n-1) Show your work
sergejj [24]

Answer:

225

Step-by-step explanation:

The sum of this series is given by the formula:

S_n=\frac{n}{2}[2a+(n-1)d]

Where

S_n is the sum

a is the first term (we get this by plugging in n = 1 into "2n-1", we have 2(1) - 1 = 1)

n is the number of terms (the sum is defined for n = 1 to n = 15, so 15 terms)

d is the common different (the difference is successive terms. Here, 2nd term would be 2(2) - 1 = 3, and first term was 1, so d = 3 -1 = 2)

<em>plugging in the info, we will get the sum:</em>

<em>S_n=\frac{n}{2}[2a+(n-1)d]\\S_{15}=\frac{15}{2}[2(1)+(15-1)(2)]\\=225</em>

<em>The sum is 225</em>

4 0
3 years ago
What is the slope of the line in the graph?
ladessa [460]
The slope is 0 in this case because you are not moving up or down to get to the next point.
Mark me as brainliest if I helped!
Hope I did:)
8 0
3 years ago
Read 2 more answers
Suppose you have a pieceof material that is 17 feet long. you only need 5/8 of the total length. how many feet do you need
Ilya [14]
(5/8) * 17 feet = 10.625 feet
5 0
3 years ago
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