Use MATH-WAY it has all the answer
I use the substitution method, but you can also use elimination and matrix
1. Solve for y in 3x+y=14
y=14-3x
2. Substitute y=14-3x into x+2y=3
-5x+28=3
3. Solve for x in -5x+28=3
x=5
4. Substitute x=5 into y=14-3x
y=-1
5. Therefore,
x=5
y=-1
Have a nice day :D
We have to calculate the length of a side ( x ) of the rectangle. We know the perimeter of the rectangle: P = 24 ft. Formula for the perimeter of the rectangle is: P = 2 L + 2 W. The width W = 4 ft. So: 24 = 2 * x + 2 * 4; 24 = 2 * x + 8; 2 * x = 24 - 8; 2 * x = 16; x = 16 : 2; x = 8. Answer: The length of side of a rectangle is 8 feet<span>.</span>
An example of a situation where the measures of central tendency can be applied is when analyzing the test scores of a Math exam taken by 11 people.
<h3>What is an example of measures of central tendency in use?</h3><h3 />
Assuming that 11 people took a Math exam that was graded out of 20 and got the results:
6, 8, 9, 10, 10, 14, 15, 15, 15, 18, 18
The median in this set would be 14. This would therefore show us what the person with the middle score got which is useful in knowing the whether people were above the middle score, or below it.
The mode in this dataset is 15 which shows that 15/20 was the score that was most acquired by people who took the exam.
The mean is:
= (6 + 8 + 9 + 10 + 10 + 14 + 15 + 15 + 15 + 18 + 18) / 11
= 12.5
On average therefore, people got a score of 12.5 in this example. This gives an overall view of the difficulty of the exam.
Find out more on the measures of central tendency at brainly.com/question/17631693
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Answer:
$20 off 10
Step-by-step explanation
it really depends on how much there is in your order, but if its more than 10 i would use $20 off 10 because its less stuff so the prices would go lower.. if that makes any sense
