2 years ago

Please find the value of x please

1 answer:

marin [14]2 years ago

5 0

Answer is 7

Step by step explanation

3x+159=180
3x=180-159=21
x=7

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Natalka [10]

Answer:

20%

Step-by-step explanation:

Probability=5/(5+12+8)*100=5/25*100=20%

3 0

3 years ago

sesenic [268]

Answer:

$2.40

Step-by-step explanation:

First, you would do 22.70 minus 3.50, to get 19.20.

Then, you would divide 19.20 by 8, to get 2.4.

So, if each pineapple was the same price, each pineapple would be $2.40.

3 0

3 years ago

sergey [27]

2•10+5•3
10•3
35/30*5 ( do it on both sides )
you'll get 7/6 or 1 1/6

8 0

3 years ago

Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

$df=n-1=28-1=27$

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

$MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450$

6 0

3 years ago

Eduardwww [97]

Its 12. Part a was 2 part b was 3
6×2=12
4×3=12

4 0

3 years ago