Ask question

Ask question

All categories

2 years ago

12

Name: Kadence Eling Date: 21-15-22 Hr. 1st Use a diagram to solve each of the problems below, marks English test had 90 question

s and he got 18b wrong. what percent of questions did he get correct?

1 answer:

FrozenT [24]2 years ago

4 0

Answer:80%

Step-by-step explanation:

18/90 × 100%

=20%

he got 20% of the questions wrong

100% - 20% =80%

=>he got 80% of the questions correct

You might be interested in

A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at

valina [46]

Answer:

$P(Same)=\frac{61}{190}$

Step-by-step explanation:

Given

$Red = 5$

$White = 6$

$Black = 9$

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

$Total = 5 + 6 + 9$

$Total = 20$

This is calculated as:

$P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)$

So, we have:

$P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1} + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}$

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

$P(Same)=\frac{5}{20} * \frac{5 - 1}{20- 1} + \frac{6}{20} * \frac{6 - 1}{20- 1} + \frac{9}{20} * \frac{9- 1}{20- 1}$

$P(Same)=\frac{5}{20} * \frac{4}{19} + \frac{6}{20} * \frac{5}{19} + \frac{9}{20} * \frac{8}{19}$

$P(Same)=\frac{20}{380} + \frac{30}{380} + \frac{72}{380}$

$P(Same)=\frac{20+30+72}{380}$

$P(Same)=\frac{122}{380}$

$P(Same)=\frac{61}{190}$

4 0

3 years ago

Which of the following functions has an inverse that is not a function?

hichkok12 [17]

<h2><u>Answer:</u></h2><h2>y=x^2 has an inverse but it is not a function</h2><h2><u>Step-by-step explanation:</u></h2><h2>y = x</h2><h2>y=x has an inverse function. y=x is the equation of a line. All line has an inverse function and it is also a function</h2><h2>y = 2x + 1 is the equation of a line.</h2><h2>All line has an inverse function and it is also a function</h2><h2>y = x^2 is the equation of a quadratic Quadratic equation has an inverse but it does not pass vertical line test.Hence it is not a function</h2><h2><u></u></h2><h2><u>Thank you</u></h2><h2><u>sunshinemadison101</u></h2>

5 0

3 years ago

-7 1 11 10 29<br> 6 3 6 3 6<br> common difference?

Hoochie [10]

9514 1404 393

Answer:

the listed sequences have no common difference(s)

Step-by-step explanation:

The differences in the first sequence are ...

8, 10, -1, 19

These values are not equal, so there is no common difference.

__

The differences in the second sequence are ...

-3, 3, -3, 3

These values are not equal, so there is no common difference.

_____

The difference is the difference between a term value and the one before.

1 -(-7) = 8

3 -6 = -3

7 0

3 years ago

Charles has 24 marbles. He has 6 more marbles than blue marbles. Which equation represents this situation.

statuscvo [17]

Answer:

n + (n + 6) = 24.

Step-by-step explanation:

Let him have n blue marbles, then he has n + 6 other narbles.

He has a total of 24 marbles, so:

n + (n + 6) = 24.

8 0

2 years ago

Read 2 more answers

Which pairs of numbers has have a greatest common factor of 7

vodomira [7]

14

need more letters

8 0

3 years ago