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VARVARA [1.3K]
3 years ago
10

What is the percent error

Mathematics
2 answers:
RideAnS [48]3 years ago
8 0
When you don't use or write the percent right.<span />
AURORKA [14]3 years ago
6 0
When you calculate results that are aiming for known values, the percent error formula is useful tool for determining the precision of your calculations. The formula is given by: The experimental value is your calculated value, and the theoretical value is your known value.
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Ms. Johnson buys a family-size bag of chips. She gives 20% to Jackie. Another 20% to Ronald. Ms. Johnson gives 1/4 to Mark and S
Kobotan [32]

Answer: 17.5%

Step-by-step explanation:

Percentage of chips given to Jackie = 20%

Percentage of chips given to Ronald = 20%

Percentage of chips given to Mark = 1/4 × 100 = 25%

From the above calculation, we can see that Ms Johnson has given out ((20% + 20% + 25%) = 65% worth of chips out. The percentage she'll have left will be:

= 100 - 65

= 35%

Since Susan takes half of what's left, the percent that Ms. Johnson has left to eat will be:

= 1/2 × 35%

= 17.5%

She has 17.5% left to eat.

3 0
3 years ago
Write and evaluate the expression. Then, select the correct answer. The sum of forty-five and a number; evaluate when n = 1. 1 4
Colt1911 [192]

The sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The statement that is given to us is" the sum of forty-five and a number", therefore, the expression that will represent this can be written as,

45 + n,

Now, if the value of n is 1.1. Then the sum will be,

45+n\\\\=45+1.1\\\\=46.1

Hence, the sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

Learn more about Expression:

brainly.com/question/13947055

6 0
2 years ago
A circle has a radius of 20 centimeters and a central angle that measures 216 degrees. What is the length of the arc defined by
Bumek [7]

Answer:4320cm

Step-by-step explanation:

(length of the arc)/(length of the radius)=central angle

lengthof the arc/20=216

lengthof the arc=216×20

length of the arc=4320cm

8 0
2 years ago
Evaluate each value expression for the given value of x : 22-x/5 , x=20<br><br> HURY!!!!!!!!!!!
ozzi
Answer= 18

22-20/5
22-4
=18
5 0
3 years ago
Read 2 more answers
What is the value of log 7 343?–3 -1/3 1/3 3
xeze [42]

Answer: 3

Step-by-step explanation:

Given :

Log_{7} 343

We need to write 343 in index form of 7.

343 is the same as 7^{3} , replacing 343 with 7^{3} , we have

Log_{7} 7^{3}

Recall one on the law of Logarithm :

Log_{a}b^{c} can be written as c Log_{a}b

So, Log_{7} 7^{3} can be written as ;

3Log_{7} 7

Also from the laws of Logarithms , Log_{a} a = 1

so , Log_{7}[/tex] 7 = 1

The solution then becomes

3 x 1 = 3

Therefore :

Log_{7} 343 = 3

8 0
3 years ago
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