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Doss [256]
3 years ago
5

A woman is twice as old as her daughter. Twenty years ago, she was four times as old as he daughter. How old are they now? (i do

n’t get this one cuz it’s subtracting instead of adding and it made me confuzzled)
Mathematics
1 answer:
AysviL [449]3 years ago
4 0
So for this, you might want to set up some equations.

The mom's variable is m and the daughter's is d.  

So now is it m=2d

And twenty years ago it was m-20=4(d-20)  which is the same as m-20=4d-80.

Simplify so it is m=4d-60. Now, plug it in as m in the first equation. 

4d-60=2d           2d=60        d=30  

Now, we know that the mom must be 60 and the daughter 30 years old.
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What is the Value Of X,
Zina [86]

The value of x in the figure is 9.72

<h3>How to determine the value of x?</h3>

The given shape is a triangle, and the value of x can be calculated using the following laws of cosine

a^2 = b^2 + c^2 - 2bc * cos(a)

So, the equation becomes

x^2 = 14^2 + 10^2 - 2 * 14 * 10 * cos(44)

Evaluate the value of cos(44)

x^2 = 14^2 + 10^2 - 2 * 14 * 10 * 0.7193

Evaluate the product

x^2 = 296 - 201.404

Evaluate the difference

x^2 = 94.596

Evaluate the exponent

x = 9.72

Hence, the value of x in the figure is 9.72

Read more about laws of cosine at

brainly.com/question/4372174

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7 0
1 year ago
4688-3) -30X-5 CX-5)
pshichka [43]

Answer:

x = 13/3

Step-by-step explanation:

4(8x-3) - 30x = 5(x-5)

Distribute

32x - 12 - 30x  = 5x -25

Combine like terms

2x -12 = 5x-25

Subtract 2x from each side

2x-12-2x = 5x-2x -25

-12 = 3x-25

Add 25 to each side

-12+25 = 3x-25+25

13 = 3x

Divide each side by 3

13/3 = x

4 0
3 years ago
Read 2 more answers
Which relationships describe the angle pair x° and 50°
worty [1.4K]

Answer:

I don't know because I would need a visual picture of the diagram you are most likely looking at, it would be helpful if you include the picture somehow.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Graph -3x + 9y = -27​
Svetllana [295]

Answer:

Step-by-step explanation:

The first step you want to do is get one variable by itself. We are going to start by isolating y by itself.

-3x + 9y = -27

9y = 3x - 27

y = 1/3x - 3

By isolating y by itself, you now have a function written in slope-intercept form. To graph this function, you can draw a point at (0,-3), then use rise/run to go up 1 unit and over 3 units to the next point (3,-2). You can then draw a line based on this information.

8 0
3 years ago
Classify the expression 2x-x+5
lapo4ka [179]
First simplify the expression as much as possible.

2x - x + 5

2x - x = x

x + 5

There are two terms, x and 5. expressions that have two terms are known as binomials

binomials should be your answer.

hope this helps
6 0
2 years ago
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