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ohaa [14]
3 years ago
9

3. READING In the seventh grade, Rachel

Mathematics
2 answers:
hjlf3 years ago
6 0
The percent of increase is 20%. 
In order to solve this problem you have to solve this equation:
18-15/15 
3/15
0.2 = 20%
IgorLugansk [536]3 years ago
3 0
You have to subtract the greater value by the lesser value which is 18-15. Then whatever you got in that problem is the amount of change. Then you do the amount of change divided by the original amount (starting). Whatever you get is the percent increase. Round if needed.
BTW- here's the answer 18-15=3
3/15=0.2   
0.2 is to 2%
2% = percent increase

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Anyone good at math? will give brainlest to correct
V125BC [204]

Answer:

8%

Step-by-step explanation:

27 - 25 = 2

2/25 x 100 = 8%

8% increase

answer is 8%

6 0
3 years ago
Read 2 more answers
Complete 4,5,6 for 25 points.
NemiM [27]

Answer:

Step-by-step explanation:

4. A = P + Prt

   a. Solve for r

    Prt = P - A

    r = (P - A)/Pt

    b. Solve for t

         Prt = P - A

           t = (P - A)/Pr

5. Ax + By = C

   a. By = C - Ax

        y = (C - Ax)/B

   b. Ax = C - By

       x = (C - By)/A

6. y = mx + b

   a. mx + b = y

       mx = y - b

       x = (y - b)/m

    b. mx + b = y

        mx = y - b

        m= (y - b)/x

   c. mx + b = y

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7 0
3 years ago
Can someone help me with this subtraction integers worksheet plzzzzzz.
Andre45 [30]

Answer:

sorry i can solve questions of level seven maybe I can help you with something else

Step-by-step explanation:

thank you!!!

7 0
3 years ago
Read 2 more answers
Name
kaheart [24]

Answer:

Slope is -2/7

Step-by-step explanation:

Slope formula is y₂-y₁/x₂-x₁

So...

(x₁,y₁) and (x₂,x₂) →(2,2) and (-5,4)

4-2= 2

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3 0
4 years ago
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For a data set of brain volumes ​(cm3​) and IQ scores of eight males, the linear correlation coefficient is found and the​ P-val
tatiyna

Answer:

The​ P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

Step-by-step explanation:

We are given the following information in the question:

p-value = 0.793

Significance level = 0.05

H_{0}: \mu = \text{ The population correlation coefficient is not significantly different from 0}\\H_A: \mu = \text{ The population correlation coefficient is significantly different from 0}

Since p value is greater than the significance value so we fail to reject the null hypothesis and accept the null hypothesis.   We conclude that there is not a significant linear relationship between two variables.

Thus, we can write:

The​ P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

7 0
4 years ago
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