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Basile [38]
2 years ago
5

Naomi asked several classmates how much cash they had in their pocket. She recorded the data below:

Mathematics
1 answer:
AfilCa [17]2 years ago
8 0

Answer:

the answer is $2,883$

Step-by-step explanation:

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Please help<br> y∝1/√x If y=5<br> when x=36 find,<br> x when y=3
Fittoniya [83]

Answer:

<h3>x=60</h3>

Step-by-step explanation:

5=k×\frac{1}{36}

k=180

3=180×\frac{1}{x}

x=60

6 0
2 years ago
Read 2 more answers
2. Circle C, has center (0,0) and radius 2.
adell [148]

Answer:

2. x ²  +  y ² =  4

3. x² + y² = 23

Step-by-step explanation:

The equation of a circle with center  

( a , b )  and radius  r  is:

( x − a )²   +  ( y − b ) ² =  r ²

Explanation:

Here,

 a = 0 ,  b = 0 ,  r = 2  

The equation is:

( x -0 ) ² +  ( y -0 ) ² =  ( 2  ) ²

that is:  x ²  +  y ² =  4  

Thus:

x ²  +  y ² =  4

3. Each point on a circle has the same distance from the center. This distance is the radius  r  of the circle.

 Here, ( -3 , 4 )  is a point on the circle, meaning that the radius of the circle is the distance between  ( 0 , 0 ) , the center, and  ( -3 , 4 ) .

thus  a circle centered on the origin will have an equation of:

x² + y² =r²

And,  ( -3 , 4 )  lies on the circle, we have:

(-3)² + (4)² = r²

9 + 14 = 23

substituting;

x² + y² = 23

8 0
2 years ago
Write as many equations as possible that could represent the relationship between
IgorC [24]

Answer:

a) Here we have:

"In Family A, the youngest child is 7 years younger than the oldest, who is 18"

Let's define:

Y = age of the youngest child.

O = age of the oldest child.

Then we know that:

Y = O - 7

O = 18

Then we can replace the second equation into the first one:

Y = 18 - 7 = 11.

b) Here we have:

"In Family B, the middle child is 5 years older than the youngest child."

Let's define:

Y = age of the youngest child.

M = age of the middle child.

Here we have only one equation:

M = Y + 5.

5 0
3 years ago
Triplicate ratio of 2:1 is​
castortr0y [4]

Answer:

8/27

Step-by-step explanation:

The triplicate ratio of 2:3 is 2^3/3^3 = 8/27

HAVE A GREAT DAY!

3 0
2 years ago
The equation x + y = z relates the whole numbers x, y, and z. How does z compare to x?
creativ13 [48]

Answer:

C. x is y less than z

Step-by-step explanation:

x+y=z

by using transposition

x = z-y

whatever x is, it is equal to the value of y taken from z

8 0
2 years ago
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