3 years ago

Help me with 18 19 and 20 plz

Mathematics

1 answer:

Rzqust [24]3 years ago

6 0

19: He multiplied instead of dividing which will make a totally incorrect answer

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I really help with this ill mark u brainliest pls

erma4kov [3.2K]

Answer:

$m\angle XYW = (155 - 20x)\degree$

Step-by-step explanation:

$m\angle XYZ= m\angle XYW +m\angle WYZ\\\\150\degree = m\angle XYW +(20x-5)\degree \\\\150\degree - (20x-5)\degree = m\angle XYW \\\\(150 - 20x+5)\degree = m\angle XYW \\\\(155 - 20x)\degree = m\angle XYW \\\\m\angle XYW = (155 - 20x)\degree \\\\$

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3 years ago

A chemistry professor who teaches a large lecture class surveys his students who attend his class about how he can make the clas

Iteru [2.4K]

Answer:

Step-by-step explanation:

I believe it's Voluntary Response Bias

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3 years ago

Can you answer this please

Sauron [17]

Answer:

It's 2.

Step-by-step explanation:

When the denominator is 99 that means it is a repeating decimal

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3 years ago

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Evaluate 5j +12 foreach listed value ofn. j= 4 j = 6

Bezzdna [24]

Answer: 32 and 42

Step-by-step explanation:

5j +12

j= 4

j = 6

5(4) + 12

5 times 4 = 20

20 + 12 = 32

5(6) + 12

5 times 6 = 30

30 + 12 = 42

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2 years ago

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The selling price of an item is $600. After 6 months of not selling, it is marked down by 30% . After another 6 months of not se

Bingel [31]

The sale price after both markdowns will be $336

Explanation

The selling price of an item is $600. After 6 months of not selling, it is marked down by 30%

So, the marked down amount after 6 months $=\$ 600*0.30= \$180$

and the selling price after first 6 months will be: $\$600-\$180=\$420$

After another 6 months of not selling , it is further marked down by 20%. So, the marked down amount now $= \$420*0.20=\$84$

Thus, the final selling price after all markdowns $=\$420-\$84=\$336$

4 0

3 years ago