MATHEMATICS MIDDLE SCHOOL

the second side of a triangular deck is 5 feet longer than the shortest side,and the third side is 5 feet shorter than twice the length of the shortest side. If the perimeter of the deck is 64 feet,what are the lengths of the three sides

Answers

Answer 1
Answer:

first (shortest) side = x

second side = x + 5

third side = 2x - 5

the perimeter = 64 ft and is equal x + (x + 5) + (2x - 5)

x + x + 5 + 2x - 5 = 64

4x = 64 |:4

x = 16 ft

x + 5 = 16 + 5 = 21 ft

2x - 5 = 2(16) - 5 = 27 ft

Answer: 16ft, 21ft and 27ft.

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Segment AB has a midpoint M (2,1) and endpoint A (-3,2). Find the coordinates of the endpoint.

Answers

I'm 90% sure the answer is 0,-1 I hope this helps you.

Measures of center questions, please help.

Answers

1. The mode is C. 18
2. The median is B. 16
3. The mean is D. 14.25
4. The median is 2.3
5. The mean is 18
1) the mode is the number that repeats the most in a given set of numbers, so the answer would be c, 18
2) the median is b, 16 (if you put the numbers in chronological order, there are two middle numbers, to get the median you have to average those two numbers)
3) the mean is d, 14.25 (add all the numbers up and divide by the amount of numbers that you have [if you have 5 numbers, you divide by 5])
4) the median is 2.3
5) the mean is 18
hope this helps!

Three vertices of a rectangle are given. Find the coordinates of the fourth vertex. (–2, 4), (4, 0), (2, –3)

A. (–4, –1)

B. (–4, 0)

C. (–4, 1)

D. (–4, 2)

Answers

Start with two vertex points from one side of the rectangle:
(4, 0) and (2, -3).
Subtract the X coordinates:  4 - 2 = 2
Subtract the Y coordinates:  0 - -3 = 3
Now, start with the third vertex point that is given:
(-2,4).
The differences for the X & Y coordinates between the third vertex point and the fourth vertex point will be the same as the differences between the 1st and 2nd points, so start with the 3rd point X coordinate and subtract 2 from it to get the X coordinate for the fourth point:
-2 - 2 = -4.
Then, take the 3rd point Y coordinate and subtract 4 to get the Y coordinate for the fourth point:
4 - 3 = 1
So, your fourth vertex point is (-4, 1).
See the attached picture.
This works because each of the two sets of sides of a rectangle are parallel to each other.  

Ten years ago the population was 249,583 currently 318,270 about by what percent has population grown in ten years?

Answers

Answer:

Idk give me the options.....

Step-by-step explanation:

PLZPLZ PLZ PLZ PLZ PLZ HELP ME I AM CONFUSED ND DONT KNOW WHAT TO DO!!

Answers

The answer to your question is 2

Answer:

lol i think its 0.5 because you follow the lin and it goes up each time hope this hlps

Step-by-step explanation:

Markus receives dollar bills from his grandfathet for one week.On the first day he received $1; on the second day he received $2, on third day he received $4, and on the foruth day he received $8. If this continuse , how much money will markus have by the end of the week?

Answers

Marcus, oh boy I wish my grandpa did this with me, but Marcus would end the week with $167.
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