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Irina-Kira [14]
3 years ago
15

A total of 256 people visted an exhibit at a science museum in 8 hours. What was the unit rate of visitors per hour

Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Divide 256 by 8 and you get 32.

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−3x−6+(−1) equivalent
OLga [1]

Answer:

-3x-7

Step-by-step explanation:

Combine Like Terms:

=−3x+−6+−1

=(−3x)+(−6+−1)

=−3x+−7

6 0
3 years ago
Ava bought 4 bags of bird seed. Each bag contains 600 grams of seed. How many kilograms of seed did Ava buy in all?
kenny6666 [7]
600 grams = 0.6 kilograms
0.6 x 4 = 2.4 kilograms
5 0
2 years ago
Belle bought 18 seeds in order to plant an herb garden for her grandma. Of the seeds she bought, 10 were parsley seeds.
Harrizon [31]

Answer:

  0.3431

Step-by-step explanation:

Here, it can work well to consider the seeds from the group of 18 that are NOT selected to be part of the group of 15 that are planted.

There are 18C3 = 816 ways to choose 3 seeds from 18 NOT to plant.

We are interested in the number of ways exactly one of the 10 parsley seeds can be chosen NOT to plant. For each of the 10C1 = 10 ways we can ignore exactly 1 parsley seed, there are also 8C2 = 28 ways to ignore two non-parsley seeds from the 8 that are non-parsley seeds.

That is, there are 10×28 = 280 ways to choose to ignore 1 parsley seed and 2 non-parsley seeds.

So, the probability of interest is 280/816 ≈ 0.3431.

___

The notation nCk is used to represent the expression n!/(k!(n-k)!), the number of ways k objects can be chosen from a group of n. It can be pronounced "n choose k".

6 0
3 years ago
in 2014 the attendance at jefferson schools fall festival was 650 in 2015 the attendance was 575 what was the percent change
Gnoma [55]

There was 11.54% decrease in attendance.

Step-by-step explanation:

Attendance in 2014 = Old value = 650

Attendance in 2015 = New value = 575

Change = New value - Old value

Change = 575 - 650 = -75

The negative sign indicates a decrease in attendance.

Decrease percentage = \frac{Change}{Old\ value}*100

Decrease\ percent=\frac{75}{650}*100\\\\Decrease\ percent=\frac{7500}{650}\\\\Decrease\ percent=11.538\%

Rounding off to nearest hundredth

Decrease percent = 11.54%

There was 11.54% decrease in attendance.

Keywords: percentage, subtraction

Learn more about subtraction at:

  • brainly.com/question/127337
  • brainly.com/question/12747564

#LearnwithBrainly

4 0
2 years ago
Read 2 more answers
HELP! WILL MARK BRAINLIEST IF CORRECT!
mariarad [96]
I think it’s 25???? i tried haha
8 0
3 years ago
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