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Mandarinka [93]
3 years ago
8

I WILL AWARD BRAINLIEST!! Find the value of x in each case.

Mathematics
1 answer:
kondor19780726 [428]3 years ago
5 0

Angle D is equal to Angle B because AB and DE are parallel to each other.


AD is a straight line so the (2) 2x angles and 72 degrees need to equal 180.

Setting up the equation you have:

2x + 2x + 72 = 180

Simplify:

4x + 72 = 180

Subtract 72 from each side:

4x = 108

Divide both sides by 4:

x = 108 / 4

x = 27



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6 0
4 years ago
One pump can fill a swimming pool in 6 hours. A second pipe drains the pool in 9 hours. If the the pool starts empty, what part
vitfil [10]

Answer:

1/6

Step-by-step explanation:

5/6=150/180

6/9=120/180

150/180 - 120/180 = 30/180

30/180=1/6

7 0
3 years ago
(HELP!! WILL GIVE 86 POINTS!!)
astraxan [27]

Answer: 2(−x+y=−2)

2(−x+y=−2)

1(2x−3y=4)

Becomes:

−2x+2y=−4

2x−3y=4

Add these equations to eliminate x:

−y=0

Then solve−y=0for y:

−y=0

−y/-1 = 0/-1 (Divide both sides by -1)

y=0

Step-by-step explanation:

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

−x+y=−2

Substitute 0 for y in −x+y=−2:

−x+0=−2

−x=−2(Simplify both sides of the equation)

−x/-1 = -2/-2 (Divide both sides by -1)

x=2

Answer:

x=2 and y=0

4 0
3 years ago
Read 2 more answers
Who wants free brainliest<br><br> whats 1+!<br><br> 2 or 11?
nydimaria [60]

Answer:

1+1 = 2 or 2 + 11 = 13

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Factorise fully the following 2x+10
PilotLPTM [1.2K]

Answer:

2(x+5)

Step-by-step explanation:

4 0
3 years ago
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