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-BARSIC- [3]
3 years ago
15

Please help me with this

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

  x = 18

Step-by-step explanation:

The parts of the triangles are proportional, so you can write ...

  2x/80 = 27/60

Multiply by 120:

  3x = 54

Divide by 3:

  x = 18

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What is 4.3(v+2.5)=8.11+4v
True [87]

Answer:

-8.8

Step-by-step explanation:

We begin by simplifying the parenthesis through multiplication. Parenthesis is a structure which signals multiplication happening.

4.3(v+2.5)=8.11+4v\\4.3v+10.75=8.11+4v

We now begin combining like terms across the equal sign by performing the inverse or doing the opposite. Move first the 8.11 by subtracting it from both sides.

4.3v+10.75-8.11=8.11-8.11+4v\\4.3v+2.64=4v

Now, move 4.3v across by subtracting it from both sides.

4.3v-4.3v+2.64=4v-4.3v

2.64=-0.3v

Finally, we divide both sides by the coefficient of v.

\frac{2.64}{-0.3} =\frac{-0.3v}{-0.3} \\-8.8=v

6 0
3 years ago
• Here in Kentucky, sales tax is 6%. If
diamong [38]

Answer:

$564

Step-by-step explanation:

  • Multiply $9400 by .06 - You should get $564 -
4 0
3 years ago
Two numbers total 63 and have a difference of 31. Find the two numbers
Anastaziya [24]

Answer: 47 and 16

Step-by-step explanation:

- Make Two Equations

x + y = 63

x - y = 31

- Set one of the equations equal to one of the variables

x + y = 63

x = 31 + y

- Substitute the equation back into the other one

(31 + y) + y = 63

31 + 2y = 63

2y = 32

y = 16

- Substitute the answer back into the equation

x + y = 63

x + 16 = 63

x = 47

5 0
3 years ago
Read 2 more answers
6a+5a=-11 whats the breakdown to get the answers
kenny6666 [7]

add 6a and 5a and get 11a

then:

11a=-11

a=-1


8 0
3 years ago
284,792 round to the place value of the underlined digit. Eight being in the ten thousand place value.
Yakvenalex [24]
The answer 280,000 because 4 is closer to 0
6 0
3 years ago
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