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Alenkasestr [34]
2 years ago
13

While shopping, Lucinda spent $48. If the amount she spent was 15% of her savings, how much savings did she

Mathematics
1 answer:
Dima020 [189]2 years ago
3 0
(48/x)=(15/100) so x=320
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Help, Solve for y 7=35y
Lapatulllka [165]

Answer:

0.2 = y

Step-by-step explanation: You have to isolate y

<u> 7 = 35y</u>

35    35

0.2 = y


RECHECK:

7 = 35y

7 = 35(0.2)

7 = 7

YES, this is a true statement.


Hope this helps you!!! :)


4 0
3 years ago
How to find equation hyperbola with asymptotes, center and transverse?
lapo4ka [179]
The equation for a hyperbola is (x-h)/a - (y-k)/b = 1
Or (y-k)/a - (x-h)/b = 1
h represents the x value of the coordinate
k value represents the y value of the coordinate 
together they represent a point, which is the center
So (h,k) is (x,y)

The asymptote is y-k = +/- b/a (x-h)
The transverse is the line that goes through the hyperbola. 
6 0
3 years ago
Solve by elimination -2x+2y=6 and 4x×2y=-5
Valentin [98]

Answer:

x=-11/6, y=7/6. (-11/6, 7/6).

Step-by-step explanation:

-2x+2y=6

4x+2y=-5

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

2(-2x+2y)=2(6)

4x+2y=-5

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

-4x+4y=12

4x+2y=-5

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

6y=7

y=7/6

4x+2(7/6)=-5

4x+14/6=-5

4x=-5-14/6

4x=-30/6-14/6

4x=-44/6

x=(-44/6)/4

x=(-44/6)(1/4)

x=-44/24

simplify

x=-11/6

3 0
3 years ago
Which relation is a function?
Artemon [7]

Answer:

The <u>last graph</u> is a <u>function.</u>

Step-by-step explanation:

They are reflected off of each other, aka they are in an organized pattern. The other graphs are a series of random plots, meaning they have no function.

4 0
3 years ago
Read 2 more answers
The scatter plot shows the average heights of children up to age 5.
Over [174]

Answer:

(a) y = 4.5x  + 22 -- The equation

(b) 31 inches

Step-by-step explanation:

Given

See attachment

Solving (a): The equation of the trend line.

We start  by calculating the slope (m)

m = \frac{y_2 - y_1}{x_2 - x_1}

Where

(x_1,y_1) = (0,22)

(x_2,y_2) = (4,40)

So, we have:

m = \frac{40 - 22}{4 - 0}

m = \frac{18}{4}

m = 4.5

The equation is then calculated using:

y = m(x-x_1)+y_1

Where:

(x_1,y_1) = (0,22)

m = 4.5

y = 4.5(x - 0) + 22

Open bracket

y = 4.5x - 0 + 22

y = 4.5x  + 22

(b) The height of a 2 year old.

To do this, we substitute 2 for x in y = 4.5x  + 22

y = 4.5 * 2 + 22

y = 9+ 22

y = 31

The prediction is 31 inches

7 0
2 years ago
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