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steposvetlana [31]
2 years ago
6

Le

Mathematics
1 answer:
juin [17]2 years ago
4 0
Total age of pupils
= 12.7 x 10
= 127 years

127 - 11 - 10 - 12 - 11 - 14 - 13 - 14 - 16 = 26 ( total age of the other 2 pupils added together )

however, since the ninth pupil is two years younger,

26-2=24
24/2=12 ( age of ninth pupil )
12+2=14 ( age of tenth pupil )

thus, (a) 12 years old,
(b) 14 years old.
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<img src="https://tex.z-dn.net/?f=%28y%20-%201%29%28y%20%2B%203%29" id="TexFormula1" title="(y - 1)(y + 3)" alt="(y - 1)(y + 3)"
m_a_m_a [10]
Sense there's only a y, you'd assume y is 1 or 1y.

you'd make the 1 a negative 1 to get rid of the subtraction sign.

you'd add together the 2 ys making it 2y. then add -1 + 3, which would be 2.

so, the answer would be 2y + 2.
7 0
3 years ago
What is the midpoint of this segment??
Korvikt [17]

Answer:

A) 6,3

Why?

The midpoint, which is somewhat self-explanatory thanks to its name, is a point in the center of a line.

To answer this question properly, you need to analyze the line and assess the situation.

How did it go from x = 2 to x = 10? Let's see, if we count by two's across the line, you'll notice it makes more sense. So now we know that every square goes up by two. x = 6 is the exact center of the line.

I hope this wasn't confusing, it's tough to explain it!

3 0
3 years ago
Read 2 more answers
D(1)=3 d(n) = d(n-1) - 14 what is the third term in the sequence
Aliun [14]
2nd term  =  3 - 14 = -11
3rd tern = -11-14 = -25 answer
6 0
3 years ago
CAN SOMEONE TELL ME IF I CLICKED THE RIGHT AWNSER PLEASE
vagabundo [1.1K]

Answer:

yes your absolutely right

Step-by-step explanation:

you just are

8 0
2 years ago
Help!!! please and thank you :)
Andrews [41]

Answer:

c

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Step-by-step explanation:

4 0
3 years ago
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