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aliina [53]
2 years ago
9

Jane is 3 years older than mary, and mary is twice as old as kay. if kay is x years old, how old is jane?

Mathematics
2 answers:
lapo4ka [179]2 years ago
7 0

Answer:

2x +3 years old is Jane

Step-by-step explanation:

As per the statement:

If Kay is x years old.

Mary is twice as old as Kay.

then;

Mary = 2x  years old

It is also given that Jane is 3 years older than mary

⇒ Jane = 2x + 3

Therefore, 2x +3 years old is Jane

krek1111 [17]2 years ago
6 0
The answer is y = 2x + 3.

x - Kay's age
y - Jane's age
m - Mary's age

<span>Jane is 3 years older than Mary: y = m + 3
</span><span>Mary is twice as old as Kay: m = 2x
</span><span>
y = m + 3
m = 2x

Substitute m in the first equation:
y = 2x + 3
</span>
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A, B, and C are collinear, and B is between A and C. The ratio of AB to AC is 1:2 If A is at (6,3) and B is at (-1,2), what are
Maksim231197 [3]

Answer:

The coordinates of C is (-8,1)

Step-by-step explanation:

Looking at the attached image, you'd see that, AB is 1 and BC is 1, that's because we are told that ratio of AB to AC is 1:2 meaning, AC is 2 and AB is 1. Therefore for that ratio to be satisfied BC has to be 1 so that AC would be 2.

Now let's assume the coordinates of C is (x,y).

To get it's coordinates, we use the section formula:

(x,y)= (\frac{mx + nx_{1}}{m + n} , \frac{my + ny_{1}}{m + n})

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Therefore we have

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This gives:

(-1,2) = (\frac{x + 6}{2} , \frac{y + 3}{2})

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7 0
3 years ago
A piece of blue yarn is 6 2/10 yards long a piece of pink yarn is 7 times long as the blue yarn how much longer is the pink yarn
Svet_ta [14]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Part A: Find the LCM of 5 and 12. Show your work. (3 points)
diamong [38]

Answer:

Part A: 60

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---------------------------------

Part B: 9

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----------------------------------

Part C: 9 (8 + 9)

---------------------------------

GCF of 72 and 81 is 9...

Divide 72 by 9 and get 8.

Divide 81 by 9 and get 9.

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5 0
2 years ago
Help please. Im trying to do my homework but i don't understand how to.
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I can't read # 15 but follow the steps above.
5 0
3 years ago
Can someone please answer. There is a picture. It is only one question. Thank you so much!
muminat
So you need getting the coordinates of center of the circle x and y 
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