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ycow [4]
2 years ago
13

Please give me the answers to these questions. The questions are in the picture above. If you’re going to give me the answers sh

ow your work.
Pls answer them fast, I don’t have so much time.

Mathematics
1 answer:
Levart [38]2 years ago
7 0

Answer:

1. D

2. A

3. C

Step-by-step explanation:

1. Given

6-\dfrac{1}{2}z=\dfrac{2}{3}

Multiply the equation by 6:

6\cdot 6-6\cdot \dfrac{1}{2}z=6\cdot\dfrac{2}{3}\\ \\36-3z=4

Hence,

-3z=4-36\\ \\-3z=-32\\ \\3z=32\\ \\x=\dfrac{32}{3}

2. Given

\dfrac{3y}{2}+\dfrac{ky}{4}=6

Multiply the equation by 4:

\dfrac{3y}{2}\cdot 4+\dfrac{ky}{4}\cdot 4=6\cdot 4\\ \\6y+ky=24

Use distributive property:

y(6+k)=24\\ \\y=\dfrac{24}{6+k}

3. Given

3-(w+2)>4+2w

Open the brackets using distributive property:

3-w-2>4+2w\\ \\1-w>4+2w

Hence,

1-w>4+2w

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