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2 years ago

What is 5(x + 6)+11 =25 3x

Mathematics

1 answer:

Talja [164]2 years ago

4 0

Answer:

x= $-\frac{16}{5}$

Step-by-step explanation:

5(x+6)+11=25

Use the distributive property to multiply 5 by x+6.

5x+30+11=25

Add 30 and 11 to get 41.

5x+41=25

Subtract 41 from both sides.

5x=25−41

Subtract 41 from 25 to get −16.

5x=−16

Divide both sides by 5.

x=-16/5

Fraction -16/5 can be rewritten as -16/5 by extracting the negative sign.

x = $-\frac{16}{5}$

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What is the domain of this function? (16, 1) (1, 5) (–13, –12) (18, 12)

xxMikexx [17]

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2 years ago

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andre [41]

Answer:

9 days

Step-by-step explanation:

1= 9*(1.04)^d

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1 year ago

Ben earns $9 per hour and $6 for each delivery he makes. He wants to earn more than $155 in an 8-hour workday. What is the least

qaws [65]

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2 years ago

Ef is the median of trapezoid abcd (please explain the answer im so confused lol)

Art [367]

Step-by-step explanation:

Okay, so...

The Median of a trapezoid is directly in the middle. For some weird mathimatical reason you won't ever need to know unless it's on an exam or you become a math major, its midsegment is the average of the top length and the bottom length.

In other words,

EF = ( BC + AD ) / 2

So for part 1, we can use that equation to find x.

$EF = ( BC + AD ) / 2$

Insert known equations.

$4x-18=[(x+12)+(3x-4)]/2$

Simplify within parentheses.

$4x-18=[x+12+3x-4]/2$

$4x-18=[x+3x+12-4]/2$

Add.

$4x-18=[4x+8]/2$

Divide.

$4x-18=2x+4$

Simplify.

$(4x-2x) +(-18+18)=(2x-2x)+(4+18)$

$2x=22$

Divide both sides by 2.

$x=11$

Part 2 is a lot easier now. All we have to do is plug in 11 for x.

$BC =x+12$

$BC = 11+12$

$BC = 23$

$AD = 4x-18$

$AD = 4(11)-18$

$AD = 44-18$

$AD = 26$

$EF = 3x-4$

$EF = 3(11)-4$

$EF = 33-4$

$EF = 29$

Answer:

Part I: x = 11

Part II:

BC = 23
AD = 26
EF = 29

4 0

2 years ago

3. What is the area of the kite?

Jlenok [28]

Answer:

120ft²

Step-by-step explanation:

If you look at the figure, we have 4 triangles. Two of the triangles have measurements of 5 feet and 16 feet. 5×16=80 Next, since they are triangles, we have to divide the area in half - 80÷2=40. Now, since there are two triangles with the same side lengths and same area, I would have to multiply 40 by 2, which gets us 80 again. Therefore, keep in mind that the last two steps were unnecessary.

So now we will solve for the smaller two triangles. 5×8=40, and I would do the same thing as I did for the previous two triangles, but if you remember, that was canceled out was not effective. Therefore, since the figures are triangles but they have the same area, we'll stick with 40.

So now we know that the area of the two pairs of triangles is 40 and 80. Add them together and you get 120, which is our answer.

8 0

3 years ago

What is 5(x + 6)+11 =25 3x​

What is 5(x + 6)+11 =25 3x