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Elodia [21]
2 years ago
12

4(2x - 5) + 15 = 11

Mathematics
1 answer:
Helen [10]2 years ago
8 0

Answer:

4(2x - 5) + 15 = 11

Step-by-step explanation:

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AB = 6x DC = x + 15 AD = 9 BC = 3y Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show tha
ra1l [238]

Answer:

Therefore the lengths of the opposite side pairs.

C) 18, 9

Step-by-step explanation:

Given:

Quadrilateral ABCD is a parallelogram

AB = 6x

DC = x + 15

AD = 9

BC = 3y

TO Find:

AB = ?

BC = ?

Solution:

Quadrilateral ABCD is a parallelogram ..........Given

∴ Both pairs of opposite sides of a Parallelogram are congruent.

∴ AB = DC   and AD = BC

substituting the values we get

6x=x+15\\6x-x=15\\5x=15\\x=\dfrac{15}{5}\\ x=3\\and\\9=3y\\y=\dfrac{9}{3}\\ y=3

substituting the x' and 'y' values we get

AB= 6\times 3=18\\and\\BC=3\times 3=9

Therefore the lengths of the opposite side pairs.

C) 18, 9

3 0
3 years ago
What is 6 times 2/3 (two thirds)?
r-ruslan [8.4K]
The answer would be four
7 0
3 years ago
Read 2 more answers
The lead statue of the Korean War Memorial in Washington DC casts a 43.5 inch shadow at the same time a nearby tourist casts a 3
AfilCa [17]

Answer:

The lead statue is 87 inches tall

Step-by-step explanation:

Let

x ----> the height of the lead statue

using proportion

we know that

The height of the  lead statue divided by the length of his shadow must be equal to the height of the tourist divided by the length of his shadow.

so

\frac{x}{43.5}=\frac{64}{32}\\\\\frac{x}{43.5}=2\\\\x=2(43.5)\\\\x=87\ in

3 0
3 years ago
Can someone help me this is really confusing????? What is the solution set for the open sentence with the given replacement set?
IgorLugansk [536]

The answer is:

3

w^2 - 1 = w + 5

3^2 - 1 = w + 5

3^2 = 3(3) = 9

9-1 = 8

8 = 3 + 5

8 = 8

6 0
3 years ago
the ratio of pink marbles to White Marbles Tamara's bag is equal to 1:5 what is the percent of pink marbles
dusya [7]
It would be 20% because if you take 100 times 1/5, which is the same as 100/5, you would get 20, which is 1/5.
8 0
3 years ago
Read 2 more answers
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