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3 years ago

Solve for x. 3x/6 + 1 = 7

Mathematics

2 answers:

3241004551 [841]3 years ago

7 0

X= 1/3 because 7-1 is 6, 6/6 is 1 so x is 1/3

Evgesh-ka [11]3 years ago

5 0

The answer for 3x/6+1=7 is 12

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Janessa bought 4 stamps for $1.48 at this rate how much would 10 stamps cost

Greeley [361]

Answer: $3.7

Step-by-step explanation:

1.48 / 4 = 0.37

0.37 * 10 = 3.7

5 0

3 years ago

Victoria is interested in opening her own candy store. She has researched and found that of the 14 stores she investigated, the

Anna71 [15]

Answer:

99% confidence interval for the average start up cost is [76.575 , 123.425].

Step-by-step explanation:

We are given that of the 14 stores Victoria investigated, the average start up cost is 100 thousand dollars with a standard deviation of 29.1 thousand dollars.

So, the pivotal quantity for 99% confidence interval for the population average start up cost is given by;

P.Q. = $\frac{\bar X - \mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample average start up cost = 100 thousand dollars

$\sigma$ = sample standard deviation = 29.1 thousand dollars

n = sample of stores = 14

$\mu$ = population average start up cost

So, 99% confidence interval for the average start up cost, $\mu$ is ;

P(-3.012 < $t_1_3$ < 3.012) = 0.99

P(-3.012 < $\frac{\bar X - \mu}{\frac{s}{\sqrt{n} } }$ < 3.012) = 0.99

P( $-3.012 \times {\frac{s}{\sqrt{n} }$ < ${\bar X - \mu}$ < $3.012 \times {\frac{s}{\sqrt{n} }$ ) = 0.99

P( $\bar X-3.012 \times {\frac{s}{\sqrt{n} }$ < $\mu$ < $\bar X +3.012 \times {\frac{s}{\sqrt{n} }$ ) = 0.99

99% confidence interval for $\mu$ = [ $\bar X-3.012 \times {\frac{s}{\sqrt{n} }$ , $\bar X +3.012 \times {\frac{s}{\sqrt{n} }$ ]

= [ $100-3.012 \times {\frac{29.1}{\sqrt{14} }$ , $100+3.012 \times {\frac{29.1}{\sqrt{14} }$ ]

= [76.575 , 123.425]

Therefore, 99% confidence interval for the population average start up cost for a candy store is [76.575 , 123.425].

8 0

3 years ago

Consider the leading term of the polynomial function. What is the end behavior of the graph?

lisov135 [29]

Odd functions go up and down in the ends
even function either go up on both ends or down on both end ,

so i think the answer would be :
since n is odd and a is positive , the end behavior is up and down

hope this helps

5 0

4 years ago

Read 2 more answers

John went to the grocery store to buy apples and bananas. The amount of apples in his cart is 7 more than the amount of bananas

Novay_Z [31]

Value of x: 4x+2x= 40$

6x= 40$

x=40÷6

x=5

Quantity of bananas=7×5

=35

Quantity of apples= 1×5

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4 years ago

Three defective electric toothbrushes were accidentally shipped to a drugstore by the manufacturer along with 17 non-defective o

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3 years ago