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Aliun [14]
3 years ago
7

Please help me quick

Mathematics
1 answer:
kari74 [83]3 years ago
8 0

Answer:

This is very simple, you can use tally marks to find the amount of birthdays. Then divide it by 100. Good luck !

Step-by-step explanation:

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There were 16 sandwiches on a tray for a lunch meeting. After the meeting, 3 were left. How many sandwiches were eaten?
kifflom [539]

Answer:

13

Step-by-step explanation:

16-3+= 13

6 0
3 years ago
Simplify the following numerical expressions.
Aleksandr-060686 [28]

Answer:

|7| - 7 = 0

2|-7| =  14

(-7)^2 =  49

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Step-by-step explanation:

3 0
3 years ago
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Svetach [21]

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Step-by-step explanation:

5 0
2 years ago
Which of the equations below could be the equation of this parabola?
Mademuasel [1]

Answer:

Option B: y = -\frac{1}{2} x^2

Step-by-step explanation:

The parabola has its concavity downwards, so we need a function in the model:

y = ax^2 + bx + c

With a negative value of 'a'

The vertex is (0,0), so we have that:

0 = 0a + 0b + c

c = 0

The x-coordinate of the vertex is given by the equation:

x\_vertex = -b/2a

-b/2a = 0

b = 0

So we have a function in the model:

y = ax^2

With a < 0

The only option with this format is B:

y = -\frac{1}{2} x^2

7 0
3 years ago
Nine out of ten students prefer math class over lunch. How many students do not prefer math if 200 students were asked?
fredd [130]
So, 9 out of 10 students prefer class, so, obviously, it would not be 100. It would be 150. So in conclusion, 50 students prefer lunch over math class, whilst 150 other students prefer math class over lunch.
3 0
3 years ago
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