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Kipish [7]
2 years ago
9

PLS HELP !! i’m not very good at math and can’t find the answer anywhere

Mathematics
2 answers:
elixir [45]2 years ago
8 0

Answer:

x = 6 (i think)

Step-by-step explanation:

Kay [80]2 years ago
7 0

The answer is A. x>5

can i pls get brainliest

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The price of a hamburger at McBeef’s increased from 50 cents to 60 cents. What is the percent increase?
Mashcka [7]

Answer:

20%

Step-by-step explanation:


8 0
3 years ago
A) Using your equation from step 2d, estimate the GPA of a student who studies for 15 hours a
hram777 [196]

Answer:

The predicted GPA is then y = 0.149(15) + 0.89 = 3.1

Step-by-step explanation:

Although you don't specifically say so, the equation you provide here is probably a "best fit" equation based upon data:  GPA versus the number of hours of study per week.

y = 0.149x + 0.89 and the number of study hours of interest is 15.

6 0
2 years ago
Samuel took an Antigua clock that his grandfather had purchased, to be appraised the appraiser evaluated the current price of th
NeTakaya
For this case we have an equation of the form:
 y = A * (b) ^ x
 
 Where,
 A: original price
 b: growth rate
 x: number of years
 Substituting values we have:
 y = 400 * (1.02) ^ x
 
 Answer:
 
the value of the antique clock, and, in dollars, after x years is:
 y = 400 * (1.02) ^ x
4 0
3 years ago
Help plz!
elixir [45]

Answer:

The width is 7 cm

Step-by-step explanation:

The volume of a cereal box is

V = l*w*h

6860 = 35 * w * 28

6860 =980 w

Divide each side by 980

6860/980 = w

7 = w

4 0
3 years ago
Read 2 more answers
A study was done to determine the average number of homes that a homeowner owns in his or her lifetime. For the 50 homeowners su
ipn [44]

Answer:

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom,which is the sample size subtracted by 1. So

df = 50 - 1 = 49

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0096

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0096\frac{3.8}{\sqrt{50}} = 1.1

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 5.1 - 1.1 = 4

The upper end of the interval is the sample mean added to M. So it is 5.1 + 1.1 = 6.2.

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

7 0
2 years ago
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