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Pavlova-9 [17]
2 years ago
9

Emma's sister is nine years older then Emma. Their combined ages add up to 49. How old is Emma

Mathematics
1 answer:
miss Akunina [59]2 years ago
3 0

Answer:

emma is 20 because 49-9/2=40/2 which is 20

Step-by-step explanation:

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A set of data is described as:
Savatey [412]

The group of measures which would lead to the provided conclusion is the range is 7, the mean of the data is 12, the median is 12 and the mode is 11.

Given that, the data is around 12. If another measurement were taken, it would probably be around 12.

We need to find which group of measures would lead to this conclusion.

<h3>What are the mean, median and mode of the data set?</h3>

The mean of the data is the average value of the given data. The mean of the data is the ratio of the sum of all the values of data to the total number of values of data.

The median of the data is the middle value of the data set when it arrange in ascending or descending order. The data is around 12 which suggests that the median is 12.

Median=12

The mode of a data set is the value, which occurs most times for that data set. The value which has the highest frequency in the given set of data is known as the mode of that data set.

Mean and mode is around the median. For this case, the mean of the data is 12 and the mode is 11.

Mode=11

Mean=12

Thus, the group of measures which would lead to the provided conclusion is the range is 7, the mean of the data is 12, the median is 12 and the mode is 11.

Learn more about the mean, median and mode here;

brainly.com/question/14532771

#SPJ1

5 0
2 years ago
2/9x+-2=6 <br> i need help anyone?
Diano4ka-milaya [45]

Answer:

x = 36

Step-by-step explanation:

We have the equation (2/9)x + -2 = 6.

First, notice that adding a negative number is the same as subtracting by that number. So:

(2/9)x + -2 = 6

(2/9)x - 2 = 6

Now, we need to isolate the variable. Add 2 to both sides to cancel out the -2 on the left:

(2/9)x -2 + 2 = 6 + 2

(2/9)x = 8

Now multiply both sides by 9/2 to cancel out the 2/9 on the left:

(9/2) * (2/9)x = 8 * (9/2)

x = 72/2 = 36

Thus, x = 36.

<em>~ an aesthetics lover</em>

4 0
3 years ago
A parabola has a line of symmetry x = -5. The minimum value of the quadratic function that it represents is -7. Find a possible
Ilya [14]

 

hello :<span>
<span>the parabola's equation is : f(x) = a(x-h)²+k
the verex is (h,k)
</span></span><span>line of symmetry x = h
</span><span>The minimum  or maximum value is : k 
</span>a possible equation of this parabola is :   f(x) = a(x+5)²-7
6 0
3 years ago
What is the answer for this question? 6x^2 - 35x + 49 ( factorising quadratics btw)
tino4ka555 [31]

Answer:

x=7/2  x=7/3

Step-by-step explanation:

5 0
3 years ago
I need help on 5-7. Its a little confusing for me
Len [333]

Answer:

5. x = 5, y = 3

6. x = 0, y = 4

7. x = -1, y = 1

Step-by-step explanation:

5. substitute 3(value of y) into the equation y = x - 2:

=> 3 = x - 2

=> x = 5

6. substitute 0(value of x) into the equation y = x + 4:

=> y = 0 + 4

=> y = 4

7. substitute 1(value of y) into the equation y = 2x + 3:

=> 1 = 2x + 3

=> 2x = -2

=> x = -1

8 0
3 years ago
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