answer these carefully and correctly. or i wont best answer you. thanks :)

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yvyl_jnfuvatgba

Mathematics

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23.

2ax-5x=2

The goal is to solve for x. Notice both terms on the left hand side have an x. Thus we can factor out an x

x(2a-5)=2 (divide both sides by 2a-5)

x=2/(2a-5).

Thus that is the very last option for 23.

24.

Let's write down what we know

x= the number of people on the school board.

We know that the two sub committees have equal number of members.

Subcommittee 1= (2/3)x-5

subcommittee 2= x/4

Since there are equal number of members, we can simple let subcommittee 1=subcommittee 2

(2/3)x-5=x/4 (multiply the whole equation by 4)

4(2/3)x-20=x (add 20 to both sides and subtract x from both sides).

8/3x-x=20 (multiply by three to get rid of the denominator)

8x-3x=60 (subtract 8x-3x=5x)

5x=60 (divide by 5 from both sides)

x= 12.

therefore there are 12 members on the school board.

Please let me know if you need any clarification. I'm always happy to answer your questions.


Anonymous
Really helpful material, saved me a great deal of time.

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