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Julli [10]
3 years ago
5

Please answer question 4

Mathematics
1 answer:
olasank [31]3 years ago
3 0
#4)
cross multiply
2(8x+10) = 4 * 5x
16x + 20 = 20x
4x = 20
  x = 5
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48 L = ____ ML steps plz
Oliga [24]

Ok there are 48000 mL in 48L.

7 0
3 years ago
Help me plz 8th grade math need answers quick
mixer [17]

Answer:

25. Not a solution

26. Yes a solution

27. y= 2/3 x

28. y=3x+16

Step-by-step explanation:

25. The solution to a linear equation is the point (x,y). To find if an (x,y) is a solution, substitute it into the equation and see if it works.

y=4x-4 and (8,3)

3=4(8)-4

3=32-4

3=28

False

Not a solution.

26. Repeat 25 to solve 26 with y=5x-5 and (0,-5)

y=5x-5 and (0,-5)

-5=5(0)-5

-5=0-5

-5=-5

True

Yes a solution.

27. This line crosses through the origin is proportional and therefore has the form y=mx. It also has a gentle slant meaning that is less than 1/2 and goes in a positive direction. This means it is y=2/3 x.

28. Use inverse operations to rearrange the equation.

y-3x=16

y=16+3x

y=3x+16

8 0
3 years ago
Solve and show how pls
irakobra [83]

Answer:

16

Step-by-step explanation:

since -4 is being squared, we can write it out as -4 * -4, to get us the answer 16. this answer is positive because a negative times a negative will cancel out and = a positive.

4 0
3 years ago
6.
Ilia_Sergeevich [38]

Answer:

  • A. 5 to the power of negative 5 over 6

Step-by-step explanation:

  • \sqrt[3]{5} \sqrt{5} /\sqrt[3]{5^5} =
  • 5^{1/3+1/2-5/3}=
  • 5^{1/2-4/3}=
  • 5^{3/6-8/6}=
  • 5^{-5/6}
6 0
2 years ago
A and b are positive integers. Find <img src="https://tex.z-dn.net/?f=-2a%2B3b" id="TexFormula1" title="-2a+3b" alt="-2a+3b" ali
lord [1]

A could be 2 while B could be 3, so -2a+3b turns into -4+9, which equals 5.

From what I know you can't really solve a a single equation with two-variables so it's just a matter of trial and error.

Just try plugging in a small number like 2 for a just to try it and you get 8b^2=72.

Divide everything by 8 to isolate b and you get that b^2=9.

Square root everything and you'll find that b=3. This is just one possible combination, I'm sure there are many more but this is obviously the one that was intended to be found.

Now that we know that a=2 and b=3 just plug them into the equation.

-2(2)+3(3)=?

-4+9=?

5

Sorry about having to use this ^ symbol, the equation maker is not working.

7 0
3 years ago
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