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ExtremeBDS [4]
3 years ago
7

How old is molly if she was 52 years old when she was fourteen years ago?

Mathematics
1 answer:
meriva3 years ago
8 0
To solve a problem like this, we can setup a basic algebraic equation.

52+14=x
66=x

We know this equation is true because 14 years ago, she was 52 so 14 years later, she is 66.
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Simplify <br> (1/2k) (4k) + 12 <br><br> 2k 2 + 12<br> 14k 2<br> 2k + 12<br> 14k
Lady bird [3.3K]

Answer:

(1/2) (4k) + 12 = 2k + 12

7 0
3 years ago
What is the slope of a line perpendicular to the line whose equation is 4x-2y=-16.
Arte-miy333 [17]

Answer:

-1/2

Step-by-step explanation:

the slope of the first line is 2

to get the line perpendicular, you swap the numerator and denominator, then if positive make negative and the other way around

4 0
2 years ago
What is the sign of 3 x y 3xy3, x, y when x &gt; 0 x&gt;0x, is greater than, 0 and y &lt; 0 y&lt;0
Colt1911 [192]

Answer:

The sign is negative

Step-by-step explanation:

Given

Expression = 3xy

x > 0

y

Required

Determine the sign

The expression can be split into 3 factors

(3) (x) (y)

If x > 0 then x is positive and If y < 0 then y is negative

So, the expression becomes:

(+3) (+x) (-y)

<em />

Leave only signs

(+) (+) (-)

+ * + = -

So, we have:

(+*+) (-)

(+) (-)

+ * - = -

So, we have:

(+) (-) = -

<em>Hence, the sign of the expression is negative</em>

<em></em>

Take for instance;

x = 2

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The expression would be:

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4 0
3 years ago
The four angles of a quadrilateral are in the ratio 2:3:5:8. Find the angles
sp2606 [1]

Answer:

Step-by-step explanation: let 2:3:5:8 be 2x,3x,5x,8x respectively .

*angles in a quadrilateral is 360 degree

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now substitute x in these:

2x=2x20=40

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8x=8x20= 160

so these are the following angles: 40,60,100 and 160

8 0
3 years ago
Someone please help me with this question, pleaseeeee :/<br><br><br> tyyyyy!
seraphim [82]

Answer:

4x+9y-27=0

compare and fill em

hope it helps

8 0
2 years ago
Read 2 more answers
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