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snow_tiger [21]
3 years ago
11

A group of 120 students were asked how old they were when they lost their first tooth. 50% said they were 7 years old. How many

students said they were 7 years old when they list their first tooth? explain.​
Mathematics
1 answer:
alexandr402 [8]3 years ago
7 0

Answer:

60

Step-by-step explanation:

half of 120 is 60

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Find the smallest number by which 248 should be subtracted to make them perfect square​
dimaraw [331]

Answer:

21.

Step-by-step explanation:

The next perfect square below 248 i s 225 ( = 15^2).

So the answer is 248 - 225 = 21.

4 0
3 years ago
A playgroud has a lenght of 40 ft permermter of 120 ft
ohaa [14]
What is the question? if you are looking for the sides 2 sides are 40 and the other 2 are 20.
3 0
3 years ago
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Marcus states that the polynomial expression 3x3 – 4x2y + y2 + 2 is in standard form. Ariel states that it should be y2 – 4x2y +
lubasha [3.4K]
The degree of a polynomial is the highest power of its terms.
The power of a term is the sum of the powers of all the variables in a term.
A polynomial is written starting with the greatest power in standard form.
In the first case, the power of the first term is 3, the power of the second is 3 (2 from x + 1 from y) but the power of x has decreased so it is the second term, and then so on. 
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4 0
3 years ago
Read 2 more answers
What is the area of this figure
solmaris [256]

Answer:

Step-by-step explanation:

3(3) = 9

15-3=12

12(9)= 108

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ans : 183

4 0
2 years ago
Paula is now four times the age of Lynn Lynn will be 16 in 10 years how old was Paula four years ago show your work
Dovator [93]
Greetings!

"<span>Paula is now four times the age of Lynn. Lynn will be 16 in 10 years. How old was Paula four years ago?"

If Lynn will turn sixteen in ten years, she must be 6 at the current moment:
16-10=6

Since Paula is 4 times the age of Lynn, Paula must be:
6(4)
=24

24-4
=20 

Paula was 20 years old, 4 years ago.

Hope this helps.
-Benjamin
</span>
3 0
3 years ago
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