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3 years ago

The rest of the students in the play are from Mr. Logan’s class and Ms. Gardner’s class.

1 answer:

5 0

There must be 23 students in Ms.Gardner's class because 23 - 30%=6.9 so 7 students are in her class are in the play because if you look at Mr.Logan's class he has 23 students to and there are aslo 7 students in his class are in the play so Mr. Logan's class is basically is holding Ms.Gardner's place

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During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by

Alja [10]

Answer:

The numbers of measure of music played are 1 and 7

Step-by-step explanation:

Given

$s = 10|x - 4| + 50$

Required

Solve for x when s = 80

Substitute 80 for x

$80 = 10|x - 4| + 50$

Subtract 50 from both sides

$80 - 50= 10|x - 4| + 50 - 50$

$30= 10|x - 4|$

Divide through by 10

$\frac{30}{10}= \frac{10|x - 4| }{10}$

$3= |x - 4|$

Reorder

$|x - 4| = 3$

This can be split into

$x - 4 = 3$ or $x - 4 = -3$

Solve for x

$x = 4 + 3$ or $x = 4 - 3$

$x = 7$ or $x = 1$

Hence:

The numbers of measure of music played are 1 and 7

4 0

3 years ago

A length of rope is stretched between the top edge of a building and a stake in the ground. The head of the stake is at ground l

4vir4ik [10]

X - height of the tree.
A proportion is:
1/2 : x = 1 : 36
x = 36 * 1/2
x = 18
Answer. the tree is 18 feet tall.

6 0

3 years ago

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Which set of numbers could be the length of the sides

Svetllana [295]

Answer: Choice C) {6, 9, 12}

=======================================================

Explanation:

Something like choice A can't form a triangle because the first two sides add to 6+9 = 15, which is not longer than the third side 15. We need to have x+y > z to be true. The same goes for choice B as well because 3+3 = 6 is too small compared to the third side 7. Choice D is similar to choice A.

In short, we can rule out choices A, B, and D.

The only thing left is choice C. Picking any two sides leads to having that sum be larger than the third side

6+9 = 15 which is larger than 12
9+15 = 24 which is larger than 6
6+15 = 21 which is larger than 9

So the conditions of the triangle inequality theorem work out here, and we have a triangle.

3 0

3 years ago

What is the solution to the equation? t+55=466 t+55

balandron [24]

Answer:

t=411

Step-by-step explanation:

t+55=466

466-55

Subtract the numbers

t=411

8 0

3 years ago

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Niall owes $187 to his cousin. However, he doesn't have any money right now. He hopes to earn some money by painting a house. He

Alla [95]

The equation would be 34 x 2x-187= y.

8 0

3 years ago

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