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kodGreya [7K]
3 years ago
14

Select all equations where r=3 is a solution

Mathematics
1 answer:
belka [17]3 years ago
5 0

Answer:

the first equation

Step-by-step explanation:

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Please help me ive never done one like this
inessss [21]

Given:

DE = (6x - 9) cm

EF = (4x + 4) cm

LM = 14 cm

MN = 16 cm

To find:

The value of x.

Solution:

<em>If three or more parallel lines intersect two transversals, then they cut off the transversals proportionally.</em>

$\Rightarrow \frac{DE}{EF} =\frac{LM}{MN}

$\Rightarrow \frac{6x-9}{4x+4} =\frac{14}{16}

Do cross multiplication.

$\Rightarrow 16( {6x-9})=14 ({4x+4} )

$\Rightarrow 96x-144=56 x+56

Add 144 on both sides.

$\Rightarrow 96x-144+144=56 x+56+144

$\Rightarrow 96x=56 x+200

Subtract 56x from both sides.

$\Rightarrow 96x-56x=56 x+200-56x

$\Rightarrow 40x=200

Divide by 40 on both sides, we get

$\Rightarrow x=5

The value of x is 5.

5 0
2 years ago
Can someone help pls? :( i dont understand anything at all!
Alex73 [517]

-1/4 is a fraction and -4 is a full answer, of course it will be different. 1/4 is a fourth of something while 4 is a whole number. Although remember about he negative sign there.

5 0
3 years ago
Read 2 more answers
HELP!!!! 15 points and marked brainliest!!!!
nikitadnepr [17]

Answer:

11

Step-by-step explanation:

LN = LM + MN

=> 22 = 3z + 1 + 3z + 1

20 = 6z

z =  10/3

LM = (10/3)*3+1 = 11

:(((

8 0
3 years ago
Need a real answer please
xz_007 [3.2K]

Answer:

Restate the question please?

Step-by-step explanation:

7 0
3 years ago
If one angle of a parallelogram is 60 degrees, find the number of degrees in the remaining three angles.
Anna007 [38]

Answer:

The remaining 3 angles are 300 degrees

Step-by-step explanation:

The sum of the interior angles of a parallelogram is 360 degrees

We know one angle is 60

360 -60 = 300

The remaining 3 angles are 300 degrees

4 0
3 years ago
Read 2 more answers
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