MATHEMATICS HIGH SCHOOL

.William sold half of his comic book collection and then purchased 10 more . He now has 24 comic books period how many books did William begin with?

Answers

Answer 1

Answer:

Answer:

28 books

Step-by-step explanation:

Let x represent the number of books .William owned before anything happens

x/2 + 10 = 24

2(x/2 + 10) = 2(24)

x + 20 = 48

x = 48 - 20

x = 28

Answer 2

Answer:

Answer:

Step-by-step explanation

subtract 10 by 24.multiply 14 by 2 and there's your answer hope this helps

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Simplify (x - y + 1) - (x + y - 1).
2x - 2y + 2
-2y + 2
2y - 2
-2x + 2y

Answers

$(x - y + 1) - (x + y - 1) \n \n x - y + 1 - x - y + 1 \n \n (x - x) + (-y -y) + (1 + 1) \n \n -2y + 2 \n \n Answer: \fbox {-2y + 2}$

Answer:The answer is -2y+2

Step-by-step explanation: hope this works

How to write two hundred twenty five million,sixty thousand in number form

Answers

Answer:

225,060,000

Explanation:

1 million=1,000,000

2 hundred twenty five million=225*1 million=225,000,000

two hundred twenty five million,sixty thousand=225,000,000+60,000=225,060,000

Answer:

225,060,000.

Step-by-step explanation:

225 million = 225 * 1,000,000

= 225,000,000

This + 60,000

= 225,060,000.

Marcia performs an experiment in which she pulls a marble from a bag. In herexperiment, she finds that she is twice as likely to pull a red marble as a blue
marble. If Marcia pulls 10 red marbles, how many blue marbles does she pull?

Answers

Answer:

She pulls 5 blue marbles

Step-by-step explanation:

Let x be the number of blue marbles

We are given that In her experiment, she finds that she is twice as likely to pull a red marble as a blue marble.

So, Number of red marbles = 2x

We are given that Marcia pulls 10 red marbles

So, $2x = 10$

$x =(10)/(2)$

x=5

Hence She pulls 5 blue marbles

Two sides of an isosceles triangle have lengths of 6 inches and 15 inches,respectively.FInd the length of the third side.Explain your reasoning.

Answers

Answer:

The length of the third side is 15 inches.

Step-by-step explanation:

Generally in triangles, the longest side is opposite to the greatest angle. But for an isosceles triangle, two angles are equal and so two sides opposite to these angles. The two angles are greater than the third, so the opposite sides to the angles are equal and longer than the third side.

The answer is 15. Because an isosceles is a triangle wirh two equal sides, the side will have to be either 6 or 15. But for the triangle to fot the definition, the sum of two sides must be greater than the third. It couldn't be six because 6+6<15, but 15 works because 6+15>15.

How many minutes does the hand make 1/6 of half a rotation

Answers

The answer I believe is 5 minutes

Final answer:

The minute hand takes 5 minutes to make 1/6 of half a rotation.

Explanation:

To determine the number of minutes it takes for a hand to make 1/6 of half a rotation, we first need to understand how many degrees are in a complete rotation. A complete rotation is 360 degrees. Half of this is 180 degrees. Therefore, to find 1/6 of half a rotation, we divide 180 by 6, which gives us 30 degrees.

Now we know that the hand moves 30 degrees. In one revolution (or 360 degrees), the minute hand takes 60 minutes. Therefore, to find the number of minutes it takes to move 30 degrees, we set up a proportion:

360 degrees / 60 minutes = 30 degrees / x minutes

Cross-multiplying, we get:

360x = 30 * 60

360x = 1800

x = 1800 / 360

x = 5

So, it takes 5 minutes for the hand to make 1/6 of half a rotation.