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Neko [114]
4 years ago
14

70% of the 100 students in the middle school bother lunch some of the students at bought their launch leave to attend an assembl

y now only 60% of the remaining students about their lunch how many students are remaining in the cafeteria
Mathematics
1 answer:
sukhopar [10]4 years ago
7 0
42 students remain in the cafeteria
You might be interested in
The length of a rectangle is five times its width. If the area of the rectangle is 320m, find the perimeter
Roman55 [17]

Answer: The perimeter is 96 m

Step-by-step explanation:

If we tag the length of the rectangle as l and the width as w, and if in addition we are told l=5 w,the dimensions of the rectangle are as shown in the figure.

Now, the area of a rectangle is given by:

A=(l)(w)=320 m^{2}

Since l=5 w:

A=(5w)(w)=320 m^{2}

Isolating w:

5w^{2}=320 m^{2}

w=\sqrt{\frac{320 m^{2}}{5}}

w=8 m

On the other hand, the perimeter of a triangle is given by the addition of each of its sides. Then, if the rectangle has two sides that measure w and two sides that measure 5 w, the perimeter is:

P=2(5)(w)+2w

Substituting the value of w in the last equation:

P=2(5)(8 m)+2(8 m)

Finally the perimeter is:

P=96 m

7 0
4 years ago
Quadrilateral SQUA is a square with sides measuring 25mm. Quadrilateral AQER is also a square.What is the length diagonal RQ
svet-max [94.6K]

The square has 4 sides of the same measure.

If square SQUA has a side measuring 25 mm, it means side QU measures the same.

Also, if quadrilateral AQER is a square two, then its diagonals bisect each other, then QU is equal to UR.

Thus, QR measures:

\begin{gathered} QR=QU+UR \\ QR=25\operatorname{mm}+25\operatorname{mm} \\ QR=50\operatorname{mm} \end{gathered}

The answer is 50 mm

6 0
2 years ago
Could someone please help me answer the table and graph ?
marta [7]
3 would be 36 4 is 47 6 is 69 and 8 is 91
8 0
3 years ago
40 points to the person who answers
bezimeni [28]

Hey there!

So, here is a visual of the graph.

                                    ~   ~  ~  ~  ~

                                    ~   ~  ~  ~  5

                                    ~   ~  ~  4

                                    ~   ~   3

                                    ~   2

                                    1


The definition of symmetric is that there are two equal parts. This would not cut in half equal so it is not symmetric.

The peak is at 1, since 5 is the highest number of dots. So, the correct answer would be:


"It is not symmetric and has a peak at 1." <=== third choice


I hope this helps!

~kaikers

4 0
3 years ago
PLEASE HELP !!!What is the distance between the tick marks on the number line? A number line going from 0 to 2 in increments of
jek_recluse [69]

Answer:

1/5 or A

Step-by-step explanation:

Hello. Please excuse the idiot above we do not know how he formed or why he speaks like a gorilla on crack. Anyways, we, humans, believe that 1/5 is the correct answer since their are 5 intervals between 0 and 1 between one of the tick marks is 1/5 since there are 5 intervals. I really hope you guys are human not this gorilla above us. I hope I made your day please rate 5 stars , add thanks and please mark brainliest. :)

3 0
3 years ago
Read 2 more answers
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