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sp2606 [1]
3 years ago
10

Help me please!!!!!!!!!!!!!​

Mathematics
1 answer:
lana [24]3 years ago
4 0

Answer:

1. 125,000

3 17.5

4. 15

5. 17.5

Step-by-step explanation:

1. Create a unit rate. 20,000/8 = 2,500 straws per hour. This means in 50 hours multiply 2500*50 = 125,000.

3. Mean is the average and is found by adding all the date points and dividing by the number of them.

15 + 16 + 17 + 23 + 1 1+ 19 + 20 + 15 + 18 + 22 + 15 + 19 = 210

210 / 12 = 17.5

4. The mode is the number that occurs most often. Write the numbers in order and choose the one that happens the most.

11, 15, 15, 15, 16, 17, 18, 19, 19, 20, 22, 23

15 is the mode

5. The median is the number in the middle. If two numbers then take the average. The numbers in the middle when written in order are 17 and 18. So the 17+18 / 2= 17.5

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Six years after a tree was planted, its height was 7 feet. Nine years after it was planted, its height was 16 feet. Which of the
pychu [463]
Considering that the grows at a constant rate we can form an equation where x = how many years after it was planted
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Now we just need to find how many feet it grows each year. To do that we just need to compare its height from a certain age to another:
6 years after it was planted : 7 feet,
so x=6 and y = 7

9 years after it was planted: 16 feet
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With thay we can conclude that in 3 years , the tree grew 9 feet. To discover how much the tree grow each year we just nee to divide 9 feet by 3 years which is 3 feet every year.

To write the equatopn now we just need to find the y-intercept which we can discover by setting x to 0:
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7 - 18 = -11
The tree was -11 feet long when it was planted
which is our y-intercept
( I know it doesnt make sense , but if you apply to a graph it will make more sense )


Now we can make the equation
y = 3x -11
7 0
3 years ago
Which rate describes a unit price?
jarptica [38.1K]
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Answer:

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