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elena-14-01-66 [18.8K]
2 years ago
11

As a member of the student council at your school, you want to determine if the seventh-grade students prefer to

Mathematics
1 answer:
Jet001 [13]2 years ago
4 0

Answer: I dont know

Step-by-step explanation:  i need more information

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The area of a rectangular wall of a barn is 42 square feet. Its length is 8 feet longer than twice its width. Find the length an
Furkat [3]

Answer:

The answer to your question is: length = 14 ft; width = 3 ft

Step-by-step explanation:

Data

Area = 42 ft²

length = 8 + 2w

w = width = ?

length = ?

Formula

Area = length x width = l x w

Substitution

                     42 = (2w + 8)w

                     42 = 2w² + 8w

                     2w² + 8w - 42 = 0

                                                                  Dividing by 2

                      w² + 4w - 21 = 0                 Factorize

                     (w + 7) (w - 3) = 0

                     w1 = -7                      w2 = 3

     It's not possible to have negative widths

So the answer is w = 3 ft

      length = 2(3) + 8

      length = 6 + 8

      length = 14 ft

               

8 0
3 years ago
Juan just took a 40 question math test. He scored 75%. How many questions did he get correct
Veronika [31]

Answer:

30

Step-by-step explanation:

  40

x 0.75

-----------

=  30

7 0
3 years ago
How to do this. Can you maybe show me your work?
Musya8 [376]
VX = 204
Divide by 3 to get the 2/3 , 1/3 ratio of the segments
204/3= 68
68*2= 136
VW= 136, XW= 68
Do the same for RW, RY
RW= 104 this is 2/3 of the segment. Divide by 2.
WY= 52. RY= 156

#7
Find the midpoint of each side. (0,2) (7,4) m1=(3.5,3)
(0,3) (5,0) m2=(2.5,1.5)
(5,0) (7,4) m3=(6,2)
Draw a segment from each midpoint to its opposite vertex. The point of intersection is (4,2)
7 0
3 years ago
Which number sentence is true? A. 3.4 x (-3.4) = 11.56 B. 3.4 x 3.4 = 11.56 C. -3.4 x (-3.4) = -11.56 D. -3.4 x 3.4 = 11.56
avanturin [10]

answer b is true 3.4x3.4 = 11.56

3 0
3 years ago
Read 2 more answers
Sharon read a 300-page book. She read at a rate of 15 pages per day in d <br> days.
faust18 [17]
300/15 = d 

I hope this helps!
8 0
3 years ago
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