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WINSTONCH [101]
3 years ago
8

If a hand sanitizer cleans 99.9% of bacteria if u use it 2 times does that make it 100%

Mathematics
1 answer:
Viktor [21]3 years ago
7 0

Answer:

It's true

Step-by-step explanation:

I hope it helps you

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How do you get from 24 to a hundred
Tasya [4]
The easiest way would be adding 76
7 0
2 years ago
An instructor asked her students how much time (to the nearest hour) they spent studying for the midterm. The data are displayed
BARSIC [14]

Based on the data displayed in the histogram, the percentage of students who study 2 or more hours for the midterm is 88%.

<h3>What percentage study 2 hours or more?</h3>

First, find the number of students studying:

= 3 + 9 + 6 + 3 + 2 + 1 + 1

= 25

The number of students studying 2 or more hours for the exam are:

= 9 + 6 + 3 + 2 + 1 + 1

= 22 students

The percentage studying for two hours or more is:

= 22 / 25

= 88%

Find out more on percentages at brainly.com/question/25567167.

#SPJ1

8 0
2 years ago
A school has two kindergarten classes. There are 21 children in Ms. Toodle's kindergarten class. Of these, 17 are "pre-readers"�
k0ka [10]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
4 red balls 4 white balls what is the probability of drawing at least 1 red ball if two balls are drawn
vodomira [7]
The probability of drawing exactly one red ball is given by:
P(1\ red\ ball)=\frac{4C1\times4C1}{8C2}=\frac{16}{28}
the probability of drawing two red balls is given by:
P(2\ red\ balls)=\frac{4C2\times4C0}{8C2}=\frac{6}{28}
The probability of drawing at least one red ball is:
P(1 red ball) + P(2 red balls) = 16/28 + 6/28 = 11/14.
 The answer is \ \frac{11}{14}

7 0
4 years ago
How would I calculate/measure angles without a protracter?
atroni [7]

Answer:

you would calculate angles with a protractor by using degrees.

Step-by-step explanation:

the center would be put at one corner and then u measure the side you want to know the angle of. hope this helped.

4 0
3 years ago
Read 2 more answers
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