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anzhelika [568]
2 years ago
6

More than half of the students were excited about the project. In fact, were excited. If 10 students were not

Mathematics
1 answer:
alina1380 [7]2 years ago
8 0

Answer:1/2 divided by 10

Step-by-step explanation:

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The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions
ruslelena [56]

Answer:

Expression B: 0.8p

Expression D: p - 0.2p

Step-by-step explanation:

The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions shown below represent the sale price, in dollars, of the item.

Expression A: 0.2p

Expression B: 0.8p

Expression C:1 - 0.2p

Expression D: p - 0.2p

Expression E: p - 0.8p

Which two expressions each represent the sale price of the item?

Regular price of the item = $p

Sale price = 20% off regular price

Sale price = $p - 20% of p

= p - 20/100 * p

= p - 0.2 * p

= p - 0.2p

= p(1 - 0.2)

= p(0.8)

= 0.8p

The sale price is represented by the following expressions

Expression B: 0.8p

Expression D: p - 0.2p

3 0
3 years ago
How many groups of 3/4 are in each of the following quantities? 11/4<br> answer as a fraction. ASAP
Rzqust [24]

Answer:

There are 3 2/3 groups of 3/4 in 11/4

4 0
3 years ago
As a store manger you would like to find out the average time it takes to unload the truck which delivers the merchandise for yo
Georgia [21]

Answer:

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

Step-by-step explanation:

We have the standard deviation for the sample, but not for the population, so we use the students t-distribution to solve this question.

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

df = 35 - 1 = 35

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 34 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.975([tex]t_{975}). So we have T = 2.0322

The margin of error is:

M = T*s = 2.0322*30 = 60.97

The upper end of the interval is the sample mean added to M. So it is 204 + 60.97 = 264.97

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

4 0
3 years ago
Read 2 more answers
6. There are 90 seats in the school auditorium. The school had a sold out show of their play last weekend, and made $315. The co
Olegator [25]

Answer:

90

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!
Naily [24]

Answer:

The answer is given in the picture

Please mark me brainliest

7 0
2 years ago
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