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andrew11 [14]
3 years ago
13

For Emma's lemonade recipe, 9 lemons are required to make 18 cups of lemonade. At what rate are lemons being used in lemons per

cup of lemonade?
Mathematics
1 answer:
grigory [225]3 years ago
7 0

Answer:

1:2

A rate of 1 lemon per two cups of lemonade

Step-by-step explanation:

9 lemons for 18 cups can be seen as:

\frac{9}{18}

Simplify by dividing both numbers by 9:

\frac{9/9}{18/9} =\frac{1}{2}

So, one lemon is used for two cups of lemonade. Half a lemon for 1 cup of lemonade...

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2. A teacher asked his class of 20 students, "What is your age? Their responses are shown in the dot plot below.
Karolina [17]

Answer:

Yes, average does represent the centre of this data.

Average = 15.9

Step-by-step explanation:

As this question is not complete and not correctly written. Let's try to find an answer for this question.

Total number of Students = 20 = n

and we are given this data:

14, 15, 17, 18, 16.

which is just five entries and total number of students are 20. 15 entries are missing in this questions. So, let's add our own values into this question.

New set of entries for 20 students.

1. 14

2. 15

3. 17

4. 18

5. 16

6. 19

7. 17

8. 16

9. 17

10. 17

11. 15

12. 20

13. 14

14. 17

15. 18

16. 19

17. 13

18. 20

19. 17

20. 16

So, let's calculate the average of these numbers.

Average = Sum of all entries/ Total number of entries.

Average = 318/20

Average = 15.9

So, the average age of all the students of class is 15.9.

Let's calculate median:

For median , data must be arranged in a order from least to greatest number. Median is a number from that data which is at half way. In case of odd numbers, it is easy to identify median because there is only one number. and in case of even numbers, median is the average of the two middle numbers. So, here we have even numbers and median is the average of two middle numbers = 17 + 17/2 = 17

Median = 17

Yes, average does represent the centre of this data.

8 0
3 years ago
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Round 789,091 to nearest ten thousands
Shkiper50 [21]

Answer:

790,000 is the answer

8 0
2 years ago
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Find the product (a^2-b)(5a^2+6b)
Pie

Answer:

5a^​4​​+a^​2​​b−6b​^2​​

Step-by-step explanation:

1. Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.

5a^4+6a^2b−5ba^2−6b^2

2. Collect like terms.

5a^4+(6a^2b−5a^2b)−6b^2

3. Simplify.

5a^4+a^2b−6b^2

7 0
3 years ago
What is <br> 1 + 1<br> 2 + 2 <br> 4 + 4<br> 8 + 8<br> 16 + 16<br> Btw chat room for all!!
DENIUS [597]

OH i know this one! i know this one!!

* grabs my notebook and a pencil and lays on the floor* hm... its

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2 years ago
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Colt1911 [192]

Answer:

1.5 seconds

Step-by-step explanation:

i took a test with the same question

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