Number 25 and 27 help me please

Mathematics

1 answer:

sergiy2304 [10]3 years ago

6 0

For number 25, you would plot 0 in the middle. then, plot the negative and positive numbers on the number line. It should be plotted like this, -4, -3, -2, -1, 0 1, 2, 3, 4. Monday would be -2, Tuesday would be -1, and Wednesday would be -3.

As for number 27, you can put zero represents the amount of money Monica started with.

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The art teacher is buying new tables to go in the art room. Each table can seat 4 students. The art class has 30 students. How m

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Answer:

T = 7.5

Step-by-step explanation:

One table = 4 students

? table = 30 students

To get the answer we criss-cross

30 * 1 = 4T(amount of table)

4T = 30

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There should be 8 tables but the last table has 2 people sitting on it rather than 4.

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D. 90tan50 degrees

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Mashcka [7]

Essentially, what we're looking at here are two alternate interior angles.

Wait. What? Alternate interior angles?

It sounds like some super fancy math jargon, but it's a fairly simple concept that I'll try my best to explain. First, let's look at lines L and M as two parallel lines, meaning that these two are lines with equal slopes, and will never intersect. See that line that goes in between the parallel lines L and M? That's called a transversal. It's basically a line that goes through two parallel lines.

Now we know that there's a transversal going through the parallel lines. So what? Well, there's a couple of special attributes to transversals. See the two angles, 7x-7 and 4x+14? As you can tell, these two angles alternate in the interior space between the transversal and the parallel lines.

Alternate interior angles are equal. There's a way to prove that they're equal, but I won't bore you with the specifics since that's not what the question's asking.

If the angles need to be equal for lines L and M to be parallel, we can make an equation that'll solve for x:

7x - 7 = 4x + 14

Subtract 4x from both sides:

7x - 4 x - 7 = 4x - 4x + 14

3x - 7 = 14

Add 7 to both sides:

3x - 7 + 7 = 14 + 7

3x = 21

Divide both sides by 3 to completely isolate x:

$\frac{3x}{3}$ = $\frac{21}{3}$