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Mumz [18]
3 years ago
8

PLEASE HELP ME W/ MATH ASAP!!

Mathematics
2 answers:
larisa [96]3 years ago
8 0
Use similarity property:

14 / (14+6) = 21 / (21 + (x+4))

14/20 = 21/(x+25)       cross multiplication property

14*(x+25) = 20*21

14x + 350 = 420

14x = 70

x = 70/14 = 5.
seraphim [82]3 years ago
5 0

due to similarity of triangles TVW and TSU:

TV/TS=TW/TU
14/20=21/(x+4)
from this equation we get x=26
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A couch and coffee table cost a total of $1080. The cost of the couch is two times the cost of the coffee table. Find the cost o
Alborosie

Answer:

$720

$360

Step-by-step explanation:

Let the cost of couch be A and that of coffee table be B

Given couch and coffee table cost $1080

That’s

A + B = $1080

Also, the cost of couch A is 2 times the cost of coffeee table B.

That’s

A = 2B

We now have two equations

A + B = 1080

A = 2B

Now ,substitute 2B for A in the first equation .

We have

A + B = 1080

2B + B = 1080

3B = 1080

Divide both sides by 3

3B/3 = 1080/3

B = 360

The coffee table cost $360

Remember A = 2B

Therefore

A = 2 x $360

A = $720

The couch cost $720 while the coffee table cost $360

3 0
3 years ago
Which expression has a value of 17?
Ivahew [28]
The second choice is the answer
5 0
2 years ago
Read 2 more answers
Can someone help me and do it step by step
Tema [17]

Answer:

4

Step-by-step explanation:

65-25=40

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6 0
3 years ago
The length of the major axis of the ellipse below is 17 and the length of the red line segment is 6. How long is the blue line s
KatRina [158]

Answer:

<u>Option B. 11</u>

Step-by-step explanation:

See the attached figure

As the figure about an ellipse

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∴ AB + AC = major axis

∴ 6 + AC = 17

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<u>So, the length of the blue line segment = 11</u>

5 0
3 years ago
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Studentka2010 [4]
10 feet is bigger than 3 yards I think not so positive

4 0
2 years ago
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