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andreev551 [17]
3 years ago
7

(2p+3q=9)(4p+q=13)using ellimination method.​

Mathematics
1 answer:
vfiekz [6]3 years ago
7 0

Answer:

Step-by-step explanation

You need to multiply the bottom equation with -3. Then you just add both equations.

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Which of the following is a geometric sequence?
Savatey [412]
You need to find which one is in order
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3 years ago
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You notice a hot air balloon descending. The elevation h (in feet) of the balloon is modeled by the function h(x)=−6x+330, where
Anastasy [175]

Answer:

<h3>55 secs</h3>

Step-by-step explanation:

Given the elevation h (in feet) of the balloon modeled by the function h(x)=−6x+330, we can calculate the time it takes the balloon to reach the ground. The hot air balloon hits the ground at h(x) = 0.

Substitute h(x) = 0 into the modeled expression and find x as shown;

h(x)=−6x+330

0 = −6x+330

6x = 330

Divide both sides by 6

6x/6 = 330/6

x = 55 seconds

Hence the hot air balloon hits the ground after 55 seconds

4 0
2 years ago
Find the value of n<br><br> 6/n = 5/120
sleet_krkn [62]

Answer:

n = 144

Step-by-step explanation:

          6 / n = 5/120

         6 * 120 = 5*n

               5n = 6*120

               5n = 720

                 n = 720/5

                 n = 144

8 0
3 years ago
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There are 1295 students attending a small university there are 714 woman in rolled what percentage of students are woman
MatroZZZ [7]

Answer:

Approximately 55% of enrolled students are women.

Step-by-step explanation:

To find the percentage of a given set of data, you need to divide the number of actual students by the total number of students.  In this case, they are wanting the percentage of just women students at the university:

\frac{women students}{total students} =\frac{714}{1295} x 100 = 55%


4 0
3 years ago
According to the data reported by the New York State Department of Health regarding West Nile Virus for the years 2000-2004, the
hjlf

Answer:

31 human cases.

Step-by-step explanation:

The least squares line equation for the number of reported dead birds (x), versus the number of human West Nile virus cases (y) is

y = -10.2638 + 0.0491x

If the number dead birds reported in a year is 844, then we have to find the numbers of human cases of West Nile virus.

To find the numbers we will plug in the value of x = 844 in the linear equation.

y = -10.2638 + 0.0491(844)

  = -10.2638 + 41.4404

  = 31.1766

  ≈ 31

Therefore, 31 human cases can be expected.

8 0
3 years ago
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