MATHEMATICS MIDDLE SCHOOL

16 centimeters to 44.2 centimeters percent of change

Answers

Answer 1

Answer:

To calculate percentage change, we will do:

( 44.2-16/16) x 100

(1.7625) x 100

So the percent increase here will be 176.25%

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Mr.Smith's art class has a total of 35 students enrolled. Seven of the thirty five are girls. What percent of the class is made up of boys?

Answers

✡ Answer: 80% ✡

- - Why?

Well if there is 35 kids in the class and 7 of them are girls, you can subtract 35-7 to get the reaming total of kids, in this case, the boys.

Now we have a fraction of 28/35
28*35.
Lets convert it to a percent:

- - We have
Divide
28 ÷ 35 = 0.8

Always multiply by 100

0.8*100

- - Solve:

80%

✡Hope this helps✡

i agree with her.
80%

Why is the product of a rational number and an irrational number irrational

Answers

Great question. Let's let r be a rational number and s be irrational. Note r has to be nonzero for this to work. In other words, it's not true that when we multiply zero, a rational number, by an irrational number like π we get an irrational number. We of course get zero.

The question is: why is the product

$p = rs$

irrational?

In math "why" questions are usually answered with an illuminating proof. Here the indirect proof is enlightening.

Suppose p was rational. Then

$s = \frac p r$

would be rational as well, being the ratio of two rational numbers, so ultimately the ratio of two integers.

But we're given that s is irrational so we have our contradiction and must conclude our assumption that p is rational is false, that is, we conclude p is irrational.

A proof by contradiction.

Let assume that the product of a rational number and an irrational number is rational.

Let $(a)/(b)$ and $(c)/(d)$ be rational numbers, where $a,b,c,d\in \mathbb{Z} \wedge b,d\not=0$ and $x$ an irrational number.

Then

$(a)/(b)\cdot x=(c)/(d)\nx=(bc)/(ad)$

Integers are closed under multiplication, therefore $bc$ and $ad$ are integers, making the number $x=(bc)/(ad)$ rational, which is contradictory with the earlier statement that $x$ is an irrational number.

How would i graph y=2x+5

Answers

To be able to graph this you need to start on -2 on the y-axis then move up 5 then 1 to the right

The dot should be on (1,3)

Simplify square root of 1.69

Answers

In the given problem, the square root of 1.69 is 1.3.

The square root of a non-negative real number is a value that, when multiplied by itself, results in the original number. In mathematical notation, the square root of the number "x" is represented by the symbol "√x."

The square root is an inverse operation of squaring, which means that if one squares a number and then take its square root, he or she gets back to the original value. The concept of the square root is nearly related to obtaining the side length of a square with a given area or obtaining the magnitude of a vector in mathematics.

1.69 also can be written as $(169)/(100)$ in fraction form.

$\sqrt{(169)/(100)} = \sqrt{(13^2)/(10^2) }$

$= \sqrt{((13)/(10) )^2}\n= (13)/(10) \n= 1.3$

Thus, 1.3 is the square root of 1.69.

Learn more about square roots here:

brainly.com/question/29286039

#SPJ6

the answer to the question is 1.3

Emily is a very good student. She is more likely to attend class than to miss class. Which could be t.he probability that she misses class tomorrow?a. -0.4
b. 0.1
c. 0.7
d. 1.2
(PLEASE EXPLAIN HOW YOU RECEIVED YOUR ANSWER)

Answers

The correct answer is 0.1. C and D can automatically be eliminated because Emily is a good student who is likely to attend school. This leaves A and C, but A can be eliminated because there is still a possibility Emily will miss class.

The length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width?

Answers

The answer is 10 because a perimeter is to add all of the numbers up, so 10+10+15+15 which equals 50. Voila!!

The width is 10 inches.

Hope I Helped You!!!

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