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Solve what?

I don't see the problem... Does anyone else?

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Yep he's right :)

-2m-8+4(3m-9)

-2m-8+12m-36----------Combine Like terms

(-2m+12m)+(-8-36)

10m-44

Yes

Yes that's correct!

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9  =  x + (10 - x) * .8

Use the distributive property:

9  =  x + 8 - 0.8x

Subtract 8 from both sides:

1  =  x - 0.8x

Combine like terms:

1  =  0.2x

Divide both sides by 0.2:

5  =  x

-2m - 8 + 4(3m - 9)

Use the distributive property:

-2m - 8 + 12m - 36

Combine like terms:

10m - 44

All the members of a construction crew work at the same pace. Four members of the crew, working together, are able to pour foundations in 32 hours.

b

What is the constant of variation?

What is 2/3 x 2/3 x 2/3 x 2/3 x 2/3 x 2/3 x 2/3 x 2/3

No problem any time!! 😊

thank u 

8*7*5-175=105.

You mean x = 9?

6/1004---------Divide both numerator and denominator by 2

3/502-----------Answer

Approximately--------0.00597609561

-3x+8 and 5x+10-2-8x

-3x+8

You cant simplify this anymore

5x+10-2-8x

(5x-8x)+(10-2)

-3x+8

They are the same

You can also solve it like this 

4(x-3)-8=16 

4(x-3)=16+8

4(x-3)=24               divide by 4

x-3=6

x=6+3 

x+9

When something is contained within parenthesis, it is given priority over other calculations in an equation. example:            2+(3*6), you would do the 3*6 first.

They are not.

4*(x+2) is equal to 4*x + 4*2.

So 4x+8 is not equal to 4x+2 

No they aren't. The first expression would be equivalent to 4x+8.

Are the two expressions below equivalent? Explain why or why not.

4(x+2) and 4x+2

U can use the logarith for this question.

Lets say the ? is x.

the logarithm of 2  gives 16^8 as a result with the exponent x.

log2(16^8)=x

Use logarithm rules:

8* log2(16) = x

The log of 2(16) is 4, since 2^4 is 16.

8* 4 = x

32 = x

3. A rhombus has an area of 40 cm^2 and adjacent angles of 50 degrees and 130 degrees. find the length of the side of the rhombus.

We can use this :

(1/2) Area  =  (1/2) side^2  sin(50°)    multiply by 2 on both sides

Area  =  side^2  sin(50°)

40  = side^2 sin(50°)       divide both sides by sin(50)

40 / sin (50°)   = side^2       take the sq root of both sides

√ [40 / sin (50°) ]   = side ≈    7.226  cm

Lets look at the first one:

It says the distance is equal to 3 times s. This means that the distance would expend proportional which is correct since the speed is constant. 

2nd one:

This says that the distance is equal to 3 divided by the speed. This makes no sense, since the distance gets bigger and not lower.

3rd one:

the speed is equal to the distance times 3. This function is also a proportional function, but the speed is supposed to be constant so this doesnt fit the question.

4rd one:

speed is equal to 3 times the speed. Well u got a function with s(d) while in the function itself theres no d given. The function itself is repetitive.

Thanks and oh yeah!