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igor_vitrenko [27]
3 years ago
8

What percent of 20 is 10

Mathematics
1 answer:
Soloha48 [4]3 years ago
7 0

Answer:

50%

Step-by-step explanation:

cause 50% is 1/2 and 1/2 of 20 is 10

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Lynn has a watering can that holds 8 cups of water. How many cups of water will 13 plants get
JulsSmile [24]

Answer:

13 plants get 8 cups

so 1 plant get 8/13 = 0.615 cups

Step-by-step explanation:

8 0
3 years ago
A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sam
Julli [10]

Answer:

There is not enough evidence to support the claim that union membership increased.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 12.5% = 0.125

Alpha, α = 0.05

Number of women belonging to union , x = 52

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.125\\H_A: p > 0.125

The null hypothesis sates that 12.5% of U.S. workers belong to union and the alternate hypothesis states that there is a increase in union membership.

This is a one-tailed(right) test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{52}{400} = 0.13

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.13-0.125}{\sqrt{\frac{0.125(1-0.125)}{400}}} = 0.3023

Now, we calculate the p-value from the table.

P-value = 0.3812

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that union membership increased.

8 0
2 years ago
Evan's rectangular lawn measures 8 yards by 10 yards. He planted a hedge
bezimeni [28]

Answer:

Length of rectangular lawn =72 meters

Breadth of rectangular lawn =18 meters

Perimeter of rectangle =2(Length+Breadth)

So, Perimeter of rectangle =2(72+18)=2(90)=180 meters

If three shrubs can be planted in a meter of hedge.

Then, Number of shrubs planted in whole perimeter will be=3×180=540

Step-by-step explanation:

8 0
2 years ago
Ten people stand in line. The first goes to the back of the line and the next person sits down, so that the person who was third
Lelu [443]
I
right?
don't rely in me i'm in elementary school
7 0
3 years ago
Divide and answer.<br> 2.92 ÷ 10
Leni [432]

The Answer to your problem is:

0.292

8 0
3 years ago
Read 2 more answers
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